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Finding the Fourth Proportional to 934,590.80, 1,401,367.80 and 402,021.20

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Solution

The fourth proportional to 934,590.80, 1,401,367.80 and 402,021.20 is: 602,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,590.80 : 1,401,367.80 = 402,021.20 : x
  2. Step 2: Convert to fraction form
    934,590.80/1,401,367.80 = 402,021.20/x
  3. Step 3: Cross multiply
    934,590.80x = 1,401,367.80 × 402,021.20
  4. Step 4: Simplify right side
    934,590.80x = 563,379,564,597.36
  5. Step 5: Solve for x
    x = 563,379,564,597.36/934,590.80
  6. Step 6: Final answer
    x = 602,808.81

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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.