Home / 853,701.40-1,280,552.10-814,335.40

Finding the Fourth Proportional to 853,701.40, 1,280,552.10 and 814,335.40

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Solution

The fourth proportional to 853,701.40, 1,280,552.10 and 814,335.40 is: 1,221,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,701.40 : 1,280,552.10 = 814,335.40 : x
  2. Step 2: Convert to fraction form
    853,701.40/1,280,552.10 = 814,335.40/x
  3. Step 3: Cross multiply
    853,701.40x = 1,280,552.10 × 814,335.40
  4. Step 4: Simplify right side
    853,701.40x = 1,042,798,906,574.34
  5. Step 5: Solve for x
    x = 1,042,798,906,574.34/853,701.40
  6. Step 6: Final answer
    x = 1,221,503.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.