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Finding the Fourth Proportional to 954.24, 1,430.69 and 368.75

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Solution

The fourth proportional to 954.24, 1,430.69 and 368.75 is: 552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.24 : 1,430.69 = 368.75 : x
  2. Step 2: Convert to fraction form
    954.24/1,430.69 = 368.75/x
  3. Step 3: Cross multiply
    954.24x = 1,430.69 × 368.75
  4. Step 4: Simplify right side
    954.24x = 527,568.67
  5. Step 5: Solve for x
    x = 527,568.67/954.24
  6. Step 6: Final answer
    x = 552.87

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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.