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Finding the Fourth Proportional to 1,159.84, 1,740.72 and 476.32

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Solution

The fourth proportional to 1,159.84, 1,740.72 and 476.32 is: 714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.84 : 1,740.72 = 476.32 : x
  2. Step 2: Convert to fraction form
    1,159.84/1,740.72 = 476.32/x
  3. Step 3: Cross multiply
    1,159.84x = 1,740.72 × 476.32
  4. Step 4: Simplify right side
    1,159.84x = 829,139.75
  5. Step 5: Solve for x
    x = 829,139.75/1,159.84
  6. Step 6: Final answer
    x = 714.87

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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.