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Finding the Fourth Proportional to 1,706.52, 2,356.18 and 1,117.88

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Solution

The fourth proportional to 1,706.52, 2,356.18 and 1,117.88 is: 1,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.52 : 2,356.18 = 1,117.88 : x
  2. Step 2: Convert to fraction form
    1,706.52/2,356.18 = 1,117.88/x
  3. Step 3: Cross multiply
    1,706.52x = 2,356.18 × 1,117.88
  4. Step 4: Simplify right side
    1,706.52x = 2,633,926.50
  5. Step 5: Solve for x
    x = 2,633,926.50/1,706.52
  6. Step 6: Final answer
    x = 1,543.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.