Home / 805,839.12-1,205,777.16-486,176.40

Finding the Fourth Proportional to 805,839.12, 1,205,777.16 and 486,176.40

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Solution

The fourth proportional to 805,839.12, 1,205,777.16 and 486,176.40 is: 727,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,839.12 : 1,205,777.16 = 486,176.40 : x
  2. Step 2: Convert to fraction form
    805,839.12/1,205,777.16 = 486,176.40/x
  3. Step 3: Cross multiply
    805,839.12x = 1,205,777.16 × 486,176.40
  4. Step 4: Simplify right side
    805,839.12x = 586,220,398,851.02
  5. Step 5: Solve for x
    x = 586,220,398,851.02/805,839.12
  6. Step 6: Final answer
    x = 727,465.80

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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.