Home / 898,186.38-1,239,501.87-495,778.38

Finding the Fourth Proportional to 898,186.38, 1,239,501.87 and 495,778.38

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Solution

The fourth proportional to 898,186.38, 1,239,501.87 and 495,778.38 is: 684,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,186.38 : 1,239,501.87 = 495,778.38 : x
  2. Step 2: Convert to fraction form
    898,186.38/1,239,501.87 = 495,778.38/x
  3. Step 3: Cross multiply
    898,186.38x = 1,239,501.87 × 495,778.38
  4. Step 4: Simplify right side
    898,186.38x = 614,518,229,115.57
  5. Step 5: Solve for x
    x = 614,518,229,115.57/898,186.38
  6. Step 6: Final answer
    x = 684,176.74

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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.