Home / 712,369,961.92-983,046,780.12-394,816,676.14

Finding the Fourth Proportional to 712,369,961.92, 983,046,780.12 and 394,816,676.14

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Solution

The fourth proportional to 712,369,961.92, 983,046,780.12 and 394,816,676.14 is: 544,833,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,369,961.92 : 983,046,780.12 = 394,816,676.14 : x
  2. Step 2: Convert to fraction form
    712,369,961.92/983,046,780.12 = 394,816,676.14/x
  3. Step 3: Cross multiply
    712,369,961.92x = 983,046,780.12 × 394,816,676.14
  4. Step 4: Simplify right side
    712,369,961.92x = 388,123,262,217,107,840
  5. Step 5: Solve for x
    x = 388,123,262,217,107,840/712,369,961.92
  6. Step 6: Final answer
    x = 544,833,840.51

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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.