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Finding the Fourth Proportional to 460,911.60, 636,061.14 and 256,975.20

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Solution

The fourth proportional to 460,911.60, 636,061.14 and 256,975.20 is: 354,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,911.60 : 636,061.14 = 256,975.20 : x
  2. Step 2: Convert to fraction form
    460,911.60/636,061.14 = 256,975.20/x
  3. Step 3: Cross multiply
    460,911.60x = 636,061.14 × 256,975.20
  4. Step 4: Simplify right side
    460,911.60x = 163,451,938,663.73
  5. Step 5: Solve for x
    x = 163,451,938,663.73/460,911.60
  6. Step 6: Final answer
    x = 354,627.52

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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.