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Finding the Fourth Proportional to 440,020.76, 607,228.50 and 238,816.76

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Solution

The fourth proportional to 440,020.76, 607,228.50 and 238,816.76 is: 329,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,020.76 : 607,228.50 = 238,816.76 : x
  2. Step 2: Convert to fraction form
    440,020.76/607,228.50 = 238,816.76/x
  3. Step 3: Cross multiply
    440,020.76x = 607,228.50 × 238,816.76
  4. Step 4: Simplify right side
    440,020.76x = 145,016,342,949.66
  5. Step 5: Solve for x
    x = 145,016,342,949.66/440,020.76
  6. Step 6: Final answer
    x = 329,567.05

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Half scale
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Double scale
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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.