Home / 521,520,782,680.80-782,281,174,021.20-433,361,098,072.80

Finding the Fourth Proportional to 521,520,782,680.80, 782,281,174,021.20 and 433,361,098,072.80

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Solution

The fourth proportional to 521,520,782,680.80, 782,281,174,021.20 and 433,361,098,072.80 is: 650,041,647,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,782,680.80 : 782,281,174,021.20 = 433,361,098,072.80 : x
  2. Step 2: Convert to fraction form
    521,520,782,680.80/782,281,174,021.20 = 433,361,098,072.80/x
  3. Step 3: Cross multiply
    521,520,782,680.80x = 782,281,174,021.20 × 433,361,098,072.80
  4. Step 4: Simplify right side
    521,520,782,680.80x = 339,010,228,575,506,347,851,776
  5. Step 5: Solve for x
    x = 339,010,228,575,506,347,851,776/521,520,782,680.80
  6. Step 6: Final answer
    x = 650,041,647,109.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.