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Finding the Fourth Proportional to 624,535.83, 861,861.60 and 338,055.84

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Solution

The fourth proportional to 624,535.83, 861,861.60 and 338,055.84 is: 466,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,535.83 : 861,861.60 = 338,055.84 : x
  2. Step 2: Convert to fraction form
    624,535.83/861,861.60 = 338,055.84/x
  3. Step 3: Cross multiply
    624,535.83x = 861,861.60 × 338,055.84
  4. Step 4: Simplify right side
    624,535.83x = 291,357,347,151.74
  5. Step 5: Solve for x
    x = 291,357,347,151.74/624,535.83
  6. Step 6: Final answer
    x = 466,518.23

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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.