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Finding the Fourth Proportional to 924.23, 1,386.65 and 437.22

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Solution

The fourth proportional to 924.23, 1,386.65 and 437.22 is: 655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.23 : 1,386.65 = 437.22 : x
  2. Step 2: Convert to fraction form
    924.23/1,386.65 = 437.22/x
  3. Step 3: Cross multiply
    924.23x = 1,386.65 × 437.22
  4. Step 4: Simplify right side
    924.23x = 606,272.21
  5. Step 5: Solve for x
    x = 606,272.21/924.23
  6. Step 6: Final answer
    x = 655.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.