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Finding the Fourth Proportional to 542,014.53, 748,331.07 and 348,509.16

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Solution

The fourth proportional to 542,014.53, 748,331.07 and 348,509.16 is: 481,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,014.53 : 748,331.07 = 348,509.16 : x
  2. Step 2: Convert to fraction form
    542,014.53/748,331.07 = 348,509.16/x
  3. Step 3: Cross multiply
    542,014.53x = 748,331.07 × 348,509.16
  4. Step 4: Simplify right side
    542,014.53x = 260,800,232,607.60
  5. Step 5: Solve for x
    x = 260,800,232,607.60/542,014.53
  6. Step 6: Final answer
    x = 481,168.34

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Double scale
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Similar ratio
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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.