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Finding the Fourth Proportional to 484,456.74, 668,668.94 and 375,345.18

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Solution

The fourth proportional to 484,456.74, 668,668.94 and 375,345.18 is: 518,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,456.74 : 668,668.94 = 375,345.18 : x
  2. Step 2: Convert to fraction form
    484,456.74/668,668.94 = 375,345.18/x
  3. Step 3: Cross multiply
    484,456.74x = 668,668.94 × 375,345.18
  4. Step 4: Simplify right side
    484,456.74x = 250,981,663,644.71
  5. Step 5: Solve for x
    x = 250,981,663,644.71/484,456.74
  6. Step 6: Final answer
    x = 518,068.27

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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.