Home / 868,714.72-1,198,811.28-486,740.32

Finding the Fourth Proportional to 868,714.72, 1,198,811.28 and 486,740.32

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Solution

The fourth proportional to 868,714.72, 1,198,811.28 and 486,740.32 is: 671,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,714.72 : 1,198,811.28 = 486,740.32 : x
  2. Step 2: Convert to fraction form
    868,714.72/1,198,811.28 = 486,740.32/x
  3. Step 3: Cross multiply
    868,714.72x = 1,198,811.28 × 486,740.32
  4. Step 4: Simplify right side
    868,714.72x = 583,509,786,046.81
  5. Step 5: Solve for x
    x = 583,509,786,046.81/868,714.72
  6. Step 6: Final answer
    x = 671,693.22

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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.