Home / 527,904.10-791,856.15-520,030.90

Finding the Fourth Proportional to 527,904.10, 791,856.15 and 520,030.90

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Solution

The fourth proportional to 527,904.10, 791,856.15 and 520,030.90 is: 780,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,904.10 : 791,856.15 = 520,030.90 : x
  2. Step 2: Convert to fraction form
    527,904.10/791,856.15 = 520,030.90/x
  3. Step 3: Cross multiply
    527,904.10x = 791,856.15 × 520,030.90
  4. Step 4: Simplify right side
    527,904.10x = 411,789,666,355.04
  5. Step 5: Solve for x
    x = 411,789,666,355.04/527,904.10
  6. Step 6: Final answer
    x = 780,046.35

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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.