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Finding the Fourth Proportional to 624,462.77, 861,779.60 and 382,698.73

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Solution

The fourth proportional to 624,462.77, 861,779.60 and 382,698.73 is: 528,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,462.77 : 861,779.60 = 382,698.73 : x
  2. Step 2: Convert to fraction form
    624,462.77/861,779.60 = 382,698.73/x
  3. Step 3: Cross multiply
    624,462.77x = 861,779.60 × 382,698.73
  4. Step 4: Simplify right side
    624,462.77x = 329,801,956,363.93
  5. Step 5: Solve for x
    x = 329,801,956,363.93/624,462.77
  6. Step 6: Final answer
    x = 528,137.10

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.