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Finding the Fourth Proportional to 569,138.10, 853,707.15 and 536,478.90

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Solution

The fourth proportional to 569,138.10, 853,707.15 and 536,478.90 is: 804,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,138.10 : 853,707.15 = 536,478.90 : x
  2. Step 2: Convert to fraction form
    569,138.10/853,707.15 = 536,478.90/x
  3. Step 3: Cross multiply
    569,138.10x = 853,707.15 × 536,478.90
  4. Step 4: Simplify right side
    569,138.10x = 457,995,872,754.14
  5. Step 5: Solve for x
    x = 457,995,872,754.14/569,138.10
  6. Step 6: Final answer
    x = 804,718.35

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Double scale
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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.