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Finding the Fourth Proportional to 882,762, 1,218,211.56 and 480,356.88

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Solution

The fourth proportional to 882,762, 1,218,211.56 and 480,356.88 is: 662,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,762 : 1,218,211.56 = 480,356.88 : x
  2. Step 2: Convert to fraction form
    882,762/1,218,211.56 = 480,356.88/x
  3. Step 3: Cross multiply
    882,762x = 1,218,211.56 × 480,356.88
  4. Step 4: Simplify right side
    882,762x = 585,176,304,141.53
  5. Step 5: Solve for x
    x = 585,176,304,141.53/882,762
  6. Step 6: Final answer
    x = 662,892.49

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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.