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Finding the Fourth Proportional to 635,470.84, 876,948.71 and 348,990.92

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Solution

The fourth proportional to 635,470.84, 876,948.71 and 348,990.92 is: 481,606.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,470.84 : 876,948.71 = 348,990.92 : x
  2. Step 2: Convert to fraction form
    635,470.84/876,948.71 = 348,990.92/x
  3. Step 3: Cross multiply
    635,470.84x = 876,948.71 × 348,990.92
  4. Step 4: Simplify right side
    635,470.84x = 306,047,137,095.71
  5. Step 5: Solve for x
    x = 306,047,137,095.71/635,470.84
  6. Step 6: Final answer
    x = 481,606.89

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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.