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Finding the Fourth Proportional to 503,130.24, 755,045.28 and 325,195.92

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Solution

The fourth proportional to 503,130.24, 755,045.28 and 325,195.92 is: 488,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,130.24 : 755,045.28 = 325,195.92 : x
  2. Step 2: Convert to fraction form
    503,130.24/755,045.28 = 325,195.92/x
  3. Step 3: Cross multiply
    503,130.24x = 755,045.28 × 325,195.92
  4. Step 4: Simplify right side
    503,130.24x = 245,537,648,522.16
  5. Step 5: Solve for x
    x = 245,537,648,522.16/503,130.24
  6. Step 6: Final answer
    x = 488,020.05

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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.