Home / 815,511.16-1,125,391.14-452,921.16

Finding the Fourth Proportional to 815,511.16, 1,125,391.14 and 452,921.16

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Solution

The fourth proportional to 815,511.16, 1,125,391.14 and 452,921.16 is: 625,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,511.16 : 1,125,391.14 = 452,921.16 : x
  2. Step 2: Convert to fraction form
    815,511.16/1,125,391.14 = 452,921.16/x
  3. Step 3: Cross multiply
    815,511.16x = 1,125,391.14 × 452,921.16
  4. Step 4: Simplify right side
    815,511.16x = 509,713,460,582.52
  5. Step 5: Solve for x
    x = 509,713,460,582.52/815,511.16
  6. Step 6: Final answer
    x = 625,023.28

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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.