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Finding the Fourth Proportional to 588,915.40, 883,373.10 and 402,291.40

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Solution

The fourth proportional to 588,915.40, 883,373.10 and 402,291.40 is: 603,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,915.40 : 883,373.10 = 402,291.40 : x
  2. Step 2: Convert to fraction form
    588,915.40/883,373.10 = 402,291.40/x
  3. Step 3: Cross multiply
    588,915.40x = 883,373.10 × 402,291.40
  4. Step 4: Simplify right side
    588,915.40x = 355,373,401,121.34
  5. Step 5: Solve for x
    x = 355,373,401,121.34/588,915.40
  6. Step 6: Final answer
    x = 603,437.10

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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.