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Finding the Fourth Proportional to 572,185.10, 858,277.65 and 472,457.90

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Solution

The fourth proportional to 572,185.10, 858,277.65 and 472,457.90 is: 708,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,185.10 : 858,277.65 = 472,457.90 : x
  2. Step 2: Convert to fraction form
    572,185.10/858,277.65 = 472,457.90/x
  3. Step 3: Cross multiply
    572,185.10x = 858,277.65 × 472,457.90
  4. Step 4: Simplify right side
    572,185.10x = 405,500,056,135.94
  5. Step 5: Solve for x
    x = 405,500,056,135.94/572,185.10
  6. Step 6: Final answer
    x = 708,686.85

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Double scale
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Similar ratio
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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.