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Finding the Fourth Proportional to 607,885.50, 838,962.18 and 587,923.40

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Solution

The fourth proportional to 607,885.50, 838,962.18 and 587,923.40 is: 811,411.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,885.50 : 838,962.18 = 587,923.40 : x
  2. Step 2: Convert to fraction form
    607,885.50/838,962.18 = 587,923.40/x
  3. Step 3: Cross multiply
    607,885.50x = 838,962.18 × 587,923.40
  4. Step 4: Simplify right side
    607,885.50x = 493,245,493,142.20
  5. Step 5: Solve for x
    x = 493,245,493,142.20/607,885.50
  6. Step 6: Final answer
    x = 811,411.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.