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Finding the Fourth Proportional to 624,603.64, 935,486.52 and 488,821.72

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Solution

The fourth proportional to 624,603.64, 935,486.52 and 488,821.72 is: 732,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,603.64 : 935,486.52 = 488,821.72 : x
  2. Step 2: Convert to fraction form
    624,603.64/935,486.52 = 488,821.72/x
  3. Step 3: Cross multiply
    624,603.64x = 935,486.52 × 488,821.72
  4. Step 4: Simplify right side
    624,603.64x = 457,286,129,743.21
  5. Step 5: Solve for x
    x = 457,286,129,743.21/624,603.64
  6. Step 6: Final answer
    x = 732,122.10

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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.