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Finding the Fourth Proportional to 658,915.32, 988,434.54 and 185,599.92

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Solution

The fourth proportional to 658,915.32, 988,434.54 and 185,599.92 is: 278,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,915.32 : 988,434.54 = 185,599.92 : x
  2. Step 2: Convert to fraction form
    658,915.32/988,434.54 = 185,599.92/x
  3. Step 3: Cross multiply
    658,915.32x = 988,434.54 × 185,599.92
  4. Step 4: Simplify right side
    658,915.32x = 183,453,371,549.24
  5. Step 5: Solve for x
    x = 183,453,371,549.24/658,915.32
  6. Step 6: Final answer
    x = 278,417.22

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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.