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Finding the Fourth Proportional to 624,871.68, 862,323.75 and 338,392.23

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Solution

The fourth proportional to 624,871.68, 862,323.75 and 338,392.23 is: 466,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,871.68 : 862,323.75 = 338,392.23 : x
  2. Step 2: Convert to fraction form
    624,871.68/862,323.75 = 338,392.23/x
  3. Step 3: Cross multiply
    624,871.68x = 862,323.75 × 338,392.23
  4. Step 4: Simplify right side
    624,871.68x = 291,803,656,744.46
  5. Step 5: Solve for x
    x = 291,803,656,744.46/624,871.68
  6. Step 6: Final answer
    x = 466,981.73

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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.