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Finding the Fourth Proportional to 586,881.76, 879,992.16 and 187,428.64

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Solution

The fourth proportional to 586,881.76, 879,992.16 and 187,428.64 is: 281,037.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,881.76 : 879,992.16 = 187,428.64 : x
  2. Step 2: Convert to fraction form
    586,881.76/879,992.16 = 187,428.64/x
  3. Step 3: Cross multiply
    586,881.76x = 879,992.16 × 187,428.64
  4. Step 4: Simplify right side
    586,881.76x = 164,935,733,759.46
  5. Step 5: Solve for x
    x = 164,935,733,759.46/586,881.76
  6. Step 6: Final answer
    x = 281,037.42

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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.