Home / 710,575,821.20-1,065,863,731.80-193,070,385.20

Finding the Fourth Proportional to 710,575,821.20, 1,065,863,731.80 and 193,070,385.20

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Solution

The fourth proportional to 710,575,821.20, 1,065,863,731.80 and 193,070,385.20 is: 289,605,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,575,821.20 : 1,065,863,731.80 = 193,070,385.20 : x
  2. Step 2: Convert to fraction form
    710,575,821.20/1,065,863,731.80 = 193,070,385.20/x
  3. Step 3: Cross multiply
    710,575,821.20x = 1,065,863,731.80 × 193,070,385.20
  4. Step 4: Simplify right side
    710,575,821.20x = 205,786,721,269,335,456
  5. Step 5: Solve for x
    x = 205,786,721,269,335,456/710,575,821.20
  6. Step 6: Final answer
    x = 289,605,577.80

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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.