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Finding the Fourth Proportional to 442,397.80, 610,482.66 and 251,384.68

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Solution

The fourth proportional to 442,397.80, 610,482.66 and 251,384.68 is: 346,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,397.80 : 610,482.66 = 251,384.68 : x
  2. Step 2: Convert to fraction form
    442,397.80/610,482.66 = 251,384.68/x
  3. Step 3: Cross multiply
    442,397.80x = 610,482.66 × 251,384.68
  4. Step 4: Simplify right side
    442,397.80x = 153,465,988,129.65
  5. Step 5: Solve for x
    x = 153,465,988,129.65/442,397.80
  6. Step 6: Final answer
    x = 346,895.91

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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.