Home / 805,415.35-1,111,407.22-474,218.90

Finding the Fourth Proportional to 805,415.35, 1,111,407.22 and 474,218.90

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Solution

The fourth proportional to 805,415.35, 1,111,407.22 and 474,218.90 is: 654,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,415.35 : 1,111,407.22 = 474,218.90 : x
  2. Step 2: Convert to fraction form
    805,415.35/1,111,407.22 = 474,218.90/x
  3. Step 3: Cross multiply
    805,415.35x = 1,111,407.22 × 474,218.90
  4. Step 4: Simplify right side
    805,415.35x = 527,050,312,691.75
  5. Step 5: Solve for x
    x = 527,050,312,691.75/805,415.35
  6. Step 6: Final answer
    x = 654,383.25

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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.