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Finding the Fourth Proportional to 984,219.60, 1,358,223 and 531,510.60

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Solution

The fourth proportional to 984,219.60, 1,358,223 and 531,510.60 is: 733,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,219.60 : 1,358,223 = 531,510.60 : x
  2. Step 2: Convert to fraction form
    984,219.60/1,358,223 = 531,510.60/x
  3. Step 3: Cross multiply
    984,219.60x = 1,358,223 × 531,510.60
  4. Step 4: Simplify right side
    984,219.60x = 721,909,921,663.80
  5. Step 5: Solve for x
    x = 721,909,921,663.80/984,219.60
  6. Step 6: Final answer
    x = 733,484.60

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Double scale
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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.