Home / 753,511.10-1,039,841.19-409,344.30

Finding the Fourth Proportional to 753,511.10, 1,039,841.19 and 409,344.30

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Solution

The fourth proportional to 753,511.10, 1,039,841.19 and 409,344.30 is: 564,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,511.10 : 1,039,841.19 = 409,344.30 : x
  2. Step 2: Convert to fraction form
    753,511.10/1,039,841.19 = 409,344.30/x
  3. Step 3: Cross multiply
    753,511.10x = 1,039,841.19 × 409,344.30
  4. Step 4: Simplify right side
    753,511.10x = 425,653,064,031.72
  5. Step 5: Solve for x
    x = 425,653,064,031.72/753,511.10
  6. Step 6: Final answer
    x = 564,892.90

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Double scale
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1.5x scale

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.