Home / 786,139.52-1,084,876.14-446,626.40

Finding the Fourth Proportional to 786,139.52, 1,084,876.14 and 446,626.40

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Solution

The fourth proportional to 786,139.52, 1,084,876.14 and 446,626.40 is: 616,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,139.52 : 1,084,876.14 = 446,626.40 : x
  2. Step 2: Convert to fraction form
    786,139.52/1,084,876.14 = 446,626.40/x
  3. Step 3: Cross multiply
    786,139.52x = 1,084,876.14 × 446,626.40
  4. Step 4: Simplify right side
    786,139.52x = 484,534,324,854.10
  5. Step 5: Solve for x
    x = 484,534,324,854.10/786,139.52
  6. Step 6: Final answer
    x = 616,346.48

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Double scale
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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.