Home / 782,618.02-1,080,899.85-527,530.66

Finding the Fourth Proportional to 782,618.02, 1,080,899.85 and 527,530.66

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Solution

The fourth proportional to 782,618.02, 1,080,899.85 and 527,530.66 is: 728,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,618.02 : 1,080,899.85 = 527,530.66 : x
  2. Step 2: Convert to fraction form
    782,618.02/1,080,899.85 = 527,530.66/x
  3. Step 3: Cross multiply
    782,618.02x = 1,080,899.85 × 527,530.66
  4. Step 4: Simplify right side
    782,618.02x = 570,207,811,264.40
  5. Step 5: Solve for x
    x = 570,207,811,264.40/782,618.02
  6. Step 6: Final answer
    x = 728,590.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.