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Finding the Fourth Proportional to 922.48, 1,384.10 and 374.52

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Solution

The fourth proportional to 922.48, 1,384.10 and 374.52 is: 561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.48 : 1,384.10 = 374.52 : x
  2. Step 2: Convert to fraction form
    922.48/1,384.10 = 374.52/x
  3. Step 3: Cross multiply
    922.48x = 1,384.10 × 374.52
  4. Step 4: Simplify right side
    922.48x = 518,373.13
  5. Step 5: Solve for x
    x = 518,373.13/922.48
  6. Step 6: Final answer
    x = 561.93

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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.