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Finding the Fourth Proportional to 598,915.80, 898,373.70 and 386,339.40

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Solution

The fourth proportional to 598,915.80, 898,373.70 and 386,339.40 is: 579,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,915.80 : 898,373.70 = 386,339.40 : x
  2. Step 2: Convert to fraction form
    598,915.80/898,373.70 = 386,339.40/x
  3. Step 3: Cross multiply
    598,915.80x = 898,373.70 × 386,339.40
  4. Step 4: Simplify right side
    598,915.80x = 347,077,156,233.78
  5. Step 5: Solve for x
    x = 347,077,156,233.78/598,915.80
  6. Step 6: Final answer
    x = 579,509.10

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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.