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Finding the Fourth Proportional to 503,210.92, 754,816.38 and 129,234.28

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Solution

The fourth proportional to 503,210.92, 754,816.38 and 129,234.28 is: 193,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,210.92 : 754,816.38 = 129,234.28 : x
  2. Step 2: Convert to fraction form
    503,210.92/754,816.38 = 129,234.28/x
  3. Step 3: Cross multiply
    503,210.92x = 754,816.38 × 129,234.28
  4. Step 4: Simplify right side
    503,210.92x = 97,548,151,401.51
  5. Step 5: Solve for x
    x = 97,548,151,401.51/503,210.92
  6. Step 6: Final answer
    x = 193,851.42

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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.