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Finding the Fourth Proportional to 508,724.80, 763,196.55 and 153,774.70

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Solution

The fourth proportional to 508,724.80, 763,196.55 and 153,774.70 is: 230,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,724.80 : 763,196.55 = 153,774.70 : x
  2. Step 2: Convert to fraction form
    508,724.80/763,196.55 = 153,774.70/x
  3. Step 3: Cross multiply
    508,724.80x = 763,196.55 × 153,774.70
  4. Step 4: Simplify right side
    508,724.80x = 117,360,320,517.29
  5. Step 5: Solve for x
    x = 117,360,320,517.29/508,724.80
  6. Step 6: Final answer
    x = 230,695.10

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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.