Home / 870,912,194.20-1,306,368,291.30-386,238,002.20

Finding the Fourth Proportional to 870,912,194.20, 1,306,368,291.30 and 386,238,002.20

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Solution

The fourth proportional to 870,912,194.20, 1,306,368,291.30 and 386,238,002.20 is: 579,357,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,194.20 : 1,306,368,291.30 = 386,238,002.20 : x
  2. Step 2: Convert to fraction form
    870,912,194.20/1,306,368,291.30 = 386,238,002.20/x
  3. Step 3: Cross multiply
    870,912,194.20x = 1,306,368,291.30 × 386,238,002.20
  4. Step 4: Simplify right side
    870,912,194.20x = 504,569,078,969,139,584
  5. Step 5: Solve for x
    x = 504,569,078,969,139,584/870,912,194.20
  6. Step 6: Final answer
    x = 579,357,003.30

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Double scale
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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.