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Finding the Fourth Proportional to 458,283.17, 687,260.72 and 158,683.30

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Solution

The fourth proportional to 458,283.17, 687,260.72 and 158,683.30 is: 237,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,283.17 : 687,260.72 = 158,683.30 : x
  2. Step 2: Convert to fraction form
    458,283.17/687,260.72 = 158,683.30/x
  3. Step 3: Cross multiply
    458,283.17x = 687,260.72 × 158,683.30
  4. Step 4: Simplify right side
    458,283.17x = 109,056,797,688.53
  5. Step 5: Solve for x
    x = 109,056,797,688.53/458,283.17
  6. Step 6: Final answer
    x = 237,968.15

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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.