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Finding the Fourth Proportional to 623,878.65, 935,818.11 and 174,665.68

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Solution

The fourth proportional to 623,878.65, 935,818.11 and 174,665.68 is: 261,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,878.65 : 935,818.11 = 174,665.68 : x
  2. Step 2: Convert to fraction form
    623,878.65/935,818.11 = 174,665.68/x
  3. Step 3: Cross multiply
    623,878.65x = 935,818.11 × 174,665.68
  4. Step 4: Simplify right side
    623,878.65x = 163,455,304,199.92
  5. Step 5: Solve for x
    x = 163,455,304,199.92/623,878.65
  6. Step 6: Final answer
    x = 261,998.55

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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.