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Finding the Fourth Proportional to 1,002.24, 1,503.36 and 924.48

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Solution

The fourth proportional to 1,002.24, 1,503.36 and 924.48 is: 1,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002.24 : 1,503.36 = 924.48 : x
  2. Step 2: Convert to fraction form
    1,002.24/1,503.36 = 924.48/x
  3. Step 3: Cross multiply
    1,002.24x = 1,503.36 × 924.48
  4. Step 4: Simplify right side
    1,002.24x = 1,389,826.25
  5. Step 5: Solve for x
    x = 1,389,826.25/1,002.24
  6. Step 6: Final answer
    x = 1,386.72

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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.