Home / 779,901.40-1,169,852.10-218,935.90

Finding the Fourth Proportional to 779,901.40, 1,169,852.10 and 218,935.90

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Solution

The fourth proportional to 779,901.40, 1,169,852.10 and 218,935.90 is: 328,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,901.40 : 1,169,852.10 = 218,935.90 : x
  2. Step 2: Convert to fraction form
    779,901.40/1,169,852.10 = 218,935.90/x
  3. Step 3: Cross multiply
    779,901.40x = 1,169,852.10 × 218,935.90
  4. Step 4: Simplify right side
    779,901.40x = 256,122,622,380.39
  5. Step 5: Solve for x
    x = 256,122,622,380.39/779,901.40
  6. Step 6: Final answer
    x = 328,403.85

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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.