Home / 1,085,418.40-1,628,205.34-286,691.98

Finding the Fourth Proportional to 1,085,418.40, 1,628,205.34 and 286,691.98

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Solution

The fourth proportional to 1,085,418.40, 1,628,205.34 and 286,691.98 is: 430,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,418.40 : 1,628,205.34 = 286,691.98 : x
  2. Step 2: Convert to fraction form
    1,085,418.40/1,628,205.34 = 286,691.98/x
  3. Step 3: Cross multiply
    1,085,418.40x = 1,628,205.34 × 286,691.98
  4. Step 4: Simplify right side
    1,085,418.40x = 466,793,412,771.17
  5. Step 5: Solve for x
    x = 466,793,412,771.17/1,085,418.40
  6. Step 6: Final answer
    x = 430,058.50

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Double scale
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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.