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Finding the Fourth Proportional to 334,638.27, 501,957.41 and 85,320.27

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Solution

The fourth proportional to 334,638.27, 501,957.41 and 85,320.27 is: 127,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,638.27 : 501,957.41 = 85,320.27 : x
  2. Step 2: Convert to fraction form
    334,638.27/501,957.41 = 85,320.27/x
  3. Step 3: Cross multiply
    334,638.27x = 501,957.41 × 85,320.27
  4. Step 4: Simplify right side
    334,638.27x = 42,827,141,323.10
  5. Step 5: Solve for x
    x = 42,827,141,323.10/334,638.27
  6. Step 6: Final answer
    x = 127,980.41

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.