Home / 515,111.10-772,666.65-437,351.10

Finding the Fourth Proportional to 515,111.10, 772,666.65 and 437,351.10

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Solution

The fourth proportional to 515,111.10, 772,666.65 and 437,351.10 is: 656,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,111.10 : 772,666.65 = 437,351.10 : x
  2. Step 2: Convert to fraction form
    515,111.10/772,666.65 = 437,351.10/x
  3. Step 3: Cross multiply
    515,111.10x = 772,666.65 × 437,351.10
  4. Step 4: Simplify right side
    515,111.10x = 337,926,609,310.82
  5. Step 5: Solve for x
    x = 337,926,609,310.82/515,111.10
  6. Step 6: Final answer
    x = 656,026.65

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Similar ratio
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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.