Home / 877,793.20-1,316,689.80-809,364.40

Finding the Fourth Proportional to 877,793.20, 1,316,689.80 and 809,364.40

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Solution

The fourth proportional to 877,793.20, 1,316,689.80 and 809,364.40 is: 1,214,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,793.20 : 1,316,689.80 = 809,364.40 : x
  2. Step 2: Convert to fraction form
    877,793.20/1,316,689.80 = 809,364.40/x
  3. Step 3: Cross multiply
    877,793.20x = 1,316,689.80 × 809,364.40
  4. Step 4: Simplify right side
    877,793.20x = 1,065,681,849,963.12
  5. Step 5: Solve for x
    x = 1,065,681,849,963.12/877,793.20
  6. Step 6: Final answer
    x = 1,214,046.60

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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.