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Finding the Fourth Proportional to 484,637.60, 726,956.40 and 383,549.60

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Solution

The fourth proportional to 484,637.60, 726,956.40 and 383,549.60 is: 575,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,637.60 : 726,956.40 = 383,549.60 : x
  2. Step 2: Convert to fraction form
    484,637.60/726,956.40 = 383,549.60/x
  3. Step 3: Cross multiply
    484,637.60x = 726,956.40 × 383,549.60
  4. Step 4: Simplify right side
    484,637.60x = 278,823,836,437.44
  5. Step 5: Solve for x
    x = 278,823,836,437.44/484,637.60
  6. Step 6: Final answer
    x = 575,324.40

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Similar ratio
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1.5x scale

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.