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Finding the Fourth Proportional to 559,932.40, 839,898.60 and 402,468.40

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Solution

The fourth proportional to 559,932.40, 839,898.60 and 402,468.40 is: 603,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,932.40 : 839,898.60 = 402,468.40 : x
  2. Step 2: Convert to fraction form
    559,932.40/839,898.60 = 402,468.40/x
  3. Step 3: Cross multiply
    559,932.40x = 839,898.60 × 402,468.40
  4. Step 4: Simplify right side
    559,932.40x = 338,032,645,704.24
  5. Step 5: Solve for x
    x = 338,032,645,704.24/559,932.40
  6. Step 6: Final answer
    x = 603,702.60

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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.