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Finding the Fourth Proportional to 978,112.38, 1,350,035.19 and 596,349.66

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Solution

The fourth proportional to 978,112.38, 1,350,035.19 and 596,349.66 is: 823,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,112.38 : 1,350,035.19 = 596,349.66 : x
  2. Step 2: Convert to fraction form
    978,112.38/1,350,035.19 = 596,349.66/x
  3. Step 3: Cross multiply
    978,112.38x = 1,350,035.19 × 596,349.66
  4. Step 4: Simplify right side
    978,112.38x = 805,093,026,544.54
  5. Step 5: Solve for x
    x = 805,093,026,544.54/978,112.38
  6. Step 6: Final answer
    x = 823,108.92

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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.