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Finding the Fourth Proportional to 603,124.20, 903,374.10 and 485,026.20

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Solution

The fourth proportional to 603,124.20, 903,374.10 and 485,026.20 is: 726,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,124.20 : 903,374.10 = 485,026.20 : x
  2. Step 2: Convert to fraction form
    603,124.20/903,374.10 = 485,026.20/x
  3. Step 3: Cross multiply
    603,124.20x = 903,374.10 × 485,026.20
  4. Step 4: Simplify right side
    603,124.20x = 438,160,106,901.42
  5. Step 5: Solve for x
    x = 438,160,106,901.42/603,124.20
  6. Step 6: Final answer
    x = 726,484.04

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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.