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Finding the Fourth Proportional to 1,079,754, 1,490,060.64 and 627,074.16

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Solution

The fourth proportional to 1,079,754, 1,490,060.64 and 627,074.16 is: 865,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,754 : 1,490,060.64 = 627,074.16 : x
  2. Step 2: Convert to fraction form
    1,079,754/1,490,060.64 = 627,074.16/x
  3. Step 3: Cross multiply
    1,079,754x = 1,490,060.64 × 627,074.16
  4. Step 4: Simplify right side
    1,079,754x = 934,378,524,177.06
  5. Step 5: Solve for x
    x = 934,378,524,177.06/1,079,754
  6. Step 6: Final answer
    x = 865,362.41

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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.