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Finding the Fourth Proportional to 985,236.56, 1,359,641.56 and 577,240.78

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Solution

The fourth proportional to 985,236.56, 1,359,641.56 and 577,240.78 is: 796,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,236.56 : 1,359,641.56 = 577,240.78 : x
  2. Step 2: Convert to fraction form
    985,236.56/1,359,641.56 = 577,240.78/x
  3. Step 3: Cross multiply
    985,236.56x = 1,359,641.56 × 577,240.78
  4. Step 4: Simplify right side
    985,236.56x = 784,840,554,614.82
  5. Step 5: Solve for x
    x = 784,840,554,614.82/985,236.56
  6. Step 6: Final answer
    x = 796,601.13

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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.