Home / 868,703.13-1,198,809.52-486,732.65

Finding the Fourth Proportional to 868,703.13, 1,198,809.52 and 486,732.65

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Solution

The fourth proportional to 868,703.13, 1,198,809.52 and 486,732.65 is: 671,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,703.13 : 1,198,809.52 = 486,732.65 : x
  2. Step 2: Convert to fraction form
    868,703.13/1,198,809.52 = 486,732.65/x
  3. Step 3: Cross multiply
    868,703.13x = 1,198,809.52 × 486,732.65
  4. Step 4: Simplify right side
    868,703.13x = 583,499,727,303.95
  5. Step 5: Solve for x
    x = 583,499,727,303.95/868,703.13
  6. Step 6: Final answer
    x = 671,690.60

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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.