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Finding the Fourth Proportional to 440,019.76, 607,227.12 and 238,815.76

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Solution

The fourth proportional to 440,019.76, 607,227.12 and 238,815.76 is: 329,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,019.76 : 607,227.12 = 238,815.76 : x
  2. Step 2: Convert to fraction form
    440,019.76/607,227.12 = 238,815.76/x
  3. Step 3: Cross multiply
    440,019.76x = 607,227.12 × 238,815.76
  4. Step 4: Simplify right side
    440,019.76x = 145,015,406,155.41
  5. Step 5: Solve for x
    x = 145,015,406,155.41/440,019.76
  6. Step 6: Final answer
    x = 329,565.67

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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.