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Finding the Fourth Proportional to 527,900.10, 791,850.15 and 520,026.90

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Solution

The fourth proportional to 527,900.10, 791,850.15 and 520,026.90 is: 780,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,900.10 : 791,850.15 = 520,026.90 : x
  2. Step 2: Convert to fraction form
    527,900.10/791,850.15 = 520,026.90/x
  3. Step 3: Cross multiply
    527,900.10x = 791,850.15 × 520,026.90
  4. Step 4: Simplify right side
    527,900.10x = 411,783,378,769.04
  5. Step 5: Solve for x
    x = 411,783,378,769.04/527,900.10
  6. Step 6: Final answer
    x = 780,040.35

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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.