Home / 912,256.38-1,258,874.34-498,785.61

Finding the Fourth Proportional to 912,256.38, 1,258,874.34 and 498,785.61

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Solution

The fourth proportional to 912,256.38, 1,258,874.34 and 498,785.61 is: 688,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,256.38 : 1,258,874.34 = 498,785.61 : x
  2. Step 2: Convert to fraction form
    912,256.38/1,258,874.34 = 498,785.61/x
  3. Step 3: Cross multiply
    912,256.38x = 1,258,874.34 × 498,785.61
  4. Step 4: Simplify right side
    912,256.38x = 627,908,405,590.25
  5. Step 5: Solve for x
    x = 627,908,405,590.25/912,256.38
  6. Step 6: Final answer
    x = 688,302.56

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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.