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Finding the Fourth Proportional to 447,565.61, 617,656.84 and 243,606.67

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Solution

The fourth proportional to 447,565.61, 617,656.84 and 243,606.67 is: 336,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,565.61 : 617,656.84 = 243,606.67 : x
  2. Step 2: Convert to fraction form
    447,565.61/617,656.84 = 243,606.67/x
  3. Step 3: Cross multiply
    447,565.61x = 617,656.84 × 243,606.67
  4. Step 4: Simplify right side
    447,565.61x = 150,465,328,148.28
  5. Step 5: Solve for x
    x = 150,465,328,148.28/447,565.61
  6. Step 6: Final answer
    x = 336,186.08

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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.