Home / 912,541,039.97-1,259,306,970.64-494,853,214.55

Finding the Fourth Proportional to 912,541,039.97, 1,259,306,970.64 and 494,853,214.55

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Solution

The fourth proportional to 912,541,039.97, 1,259,306,970.64 and 494,853,214.55 is: 682,897,618.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,541,039.97 : 1,259,306,970.64 = 494,853,214.55 : x
  2. Step 2: Convert to fraction form
    912,541,039.97/1,259,306,970.64 = 494,853,214.55/x
  3. Step 3: Cross multiply
    912,541,039.97x = 1,259,306,970.64 × 494,853,214.55
  4. Step 4: Simplify right side
    912,541,039.97x = 623,172,102,518,892,800
  5. Step 5: Solve for x
    x = 623,172,102,518,892,800/912,541,039.97
  6. Step 6: Final answer
    x = 682,897,618.00

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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.