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Finding the Fourth Proportional to 624,613.93, 861,967.03 and 338,133.81

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Solution

The fourth proportional to 624,613.93, 861,967.03 and 338,133.81 is: 466,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,613.93 : 861,967.03 = 338,133.81 : x
  2. Step 2: Convert to fraction form
    624,613.93/861,967.03 = 338,133.81/x
  3. Step 3: Cross multiply
    624,613.93x = 861,967.03 × 338,133.81
  4. Step 4: Simplify right side
    624,613.93x = 291,460,195,948.28
  5. Step 5: Solve for x
    x = 291,460,195,948.28/624,613.93
  6. Step 6: Final answer
    x = 466,624.55

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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.