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Finding the Fourth Proportional to 519,906.13, 779,859.19 and 187,482.13

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Solution

The fourth proportional to 519,906.13, 779,859.19 and 187,482.13 is: 281,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,906.13 : 779,859.19 = 187,482.13 : x
  2. Step 2: Convert to fraction form
    519,906.13/779,859.19 = 187,482.13/x
  3. Step 3: Cross multiply
    519,906.13x = 779,859.19 × 187,482.13
  4. Step 4: Simplify right side
    519,906.13x = 146,209,662,041.28
  5. Step 5: Solve for x
    x = 146,209,662,041.28/519,906.13
  6. Step 6: Final answer
    x = 281,223.19

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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.