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Finding the Fourth Proportional to 572,591.70, 858,887.55 and 523,602.90

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Solution

The fourth proportional to 572,591.70, 858,887.55 and 523,602.90 is: 785,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,591.70 : 858,887.55 = 523,602.90 : x
  2. Step 2: Convert to fraction form
    572,591.70/858,887.55 = 523,602.90/x
  3. Step 3: Cross multiply
    572,591.70x = 858,887.55 × 523,602.90
  4. Step 4: Simplify right side
    572,591.70x = 449,716,011,953.90
  5. Step 5: Solve for x
    x = 449,716,011,953.90/572,591.70
  6. Step 6: Final answer
    x = 785,404.35

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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.