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Finding the Fourth Proportional to 884,908.76, 1,221,175.30 and 482,500.76

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Solution

The fourth proportional to 884,908.76, 1,221,175.30 and 482,500.76 is: 665,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,908.76 : 1,221,175.30 = 482,500.76 : x
  2. Step 2: Convert to fraction form
    884,908.76/1,221,175.30 = 482,500.76/x
  3. Step 3: Cross multiply
    884,908.76x = 1,221,175.30 × 482,500.76
  4. Step 4: Simplify right side
    884,908.76x = 589,218,010,343.23
  5. Step 5: Solve for x
    x = 589,218,010,343.23/884,908.76
  6. Step 6: Final answer
    x = 665,851.71

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Double scale
Find fourth proportional to 884,909.76, 1,221,176.68 and 482,501.76
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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.