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Finding the Fourth Proportional to 1,564.92, 2,347.02 and 590.40

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Solution

The fourth proportional to 1,564.92, 2,347.02 and 590.40 is: 885.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.92 : 2,347.02 = 590.40 : x
  2. Step 2: Convert to fraction form
    1,564.92/2,347.02 = 590.40/x
  3. Step 3: Cross multiply
    1,564.92x = 2,347.02 × 590.40
  4. Step 4: Simplify right side
    1,564.92x = 1,385,680.61
  5. Step 5: Solve for x
    x = 1,385,680.61/1,564.92
  6. Step 6: Final answer
    x = 885.46

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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.