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Finding the Fourth Proportional to 572,404.70, 858,607.05 and 530,414.30

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Solution

The fourth proportional to 572,404.70, 858,607.05 and 530,414.30 is: 795,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,404.70 : 858,607.05 = 530,414.30 : x
  2. Step 2: Convert to fraction form
    572,404.70/858,607.05 = 530,414.30/x
  3. Step 3: Cross multiply
    572,404.70x = 858,607.05 × 530,414.30
  4. Step 4: Simplify right side
    572,404.70x = 455,417,457,400.82
  5. Step 5: Solve for x
    x = 455,417,457,400.82/572,404.70
  6. Step 6: Final answer
    x = 795,621.45

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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.