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Finding the Fourth Proportional to 458,283.66, 687,261.46 and 158,683.80

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Solution

The fourth proportional to 458,283.66, 687,261.46 and 158,683.80 is: 237,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,283.66 : 687,261.46 = 158,683.80 : x
  2. Step 2: Convert to fraction form
    458,283.66/687,261.46 = 158,683.80/x
  3. Step 3: Cross multiply
    458,283.66x = 687,261.46 × 158,683.80
  4. Step 4: Simplify right side
    458,283.66x = 109,057,260,066.35
  5. Step 5: Solve for x
    x = 109,057,260,066.35/458,283.66
  6. Step 6: Final answer
    x = 237,968.90

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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.