Home / 891,315,364.20-1,229,991,270.18-534,284,858.58

Finding the Fourth Proportional to 891,315,364.20, 1,229,991,270.18 and 534,284,858.58

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Solution

The fourth proportional to 891,315,364.20, 1,229,991,270.18 and 534,284,858.58 is: 737,298,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,315,364.20 : 1,229,991,270.18 = 534,284,858.58 : x
  2. Step 2: Convert to fraction form
    891,315,364.20/1,229,991,270.18 = 534,284,858.58/x
  3. Step 3: Cross multiply
    891,315,364.20x = 1,229,991,270.18 × 534,284,858.58
  4. Step 4: Simplify right side
    891,315,364.20x = 657,165,711,842,755,840
  5. Step 5: Solve for x
    x = 657,165,711,842,755,840/891,315,364.20
  6. Step 6: Final answer
    x = 737,298,758.93

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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.