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Finding the Fourth Proportional to 586,585.72, 880,034.10 and 212,663.80

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Solution

The fourth proportional to 586,585.72, 880,034.10 and 212,663.80 is: 319,052.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,585.72 : 880,034.10 = 212,663.80 : x
  2. Step 2: Convert to fraction form
    586,585.72/880,034.10 = 212,663.80/x
  3. Step 3: Cross multiply
    586,585.72x = 880,034.10 × 212,663.80
  4. Step 4: Simplify right side
    586,585.72x = 187,151,395,835.58
  5. Step 5: Solve for x
    x = 187,151,395,835.58/586,585.72
  6. Step 6: Final answer
    x = 319,052.08

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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.