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Finding the Fourth Proportional to 608,398.32, 912,685.50 and 187,707

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Solution

The fourth proportional to 608,398.32, 912,685.50 and 187,707 is: 281,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,398.32 : 912,685.50 = 187,707 : x
  2. Step 2: Convert to fraction form
    608,398.32/912,685.50 = 187,707/x
  3. Step 3: Cross multiply
    608,398.32x = 912,685.50 × 187,707
  4. Step 4: Simplify right side
    608,398.32x = 171,317,457,148.50
  5. Step 5: Solve for x
    x = 171,317,457,148.50/608,398.32
  6. Step 6: Final answer
    x = 281,587.66

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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.