Home / 518,821.03-778,255.40-158,966.11

Finding the Fourth Proportional to 518,821.03, 778,255.40 and 158,966.11

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Solution

The fourth proportional to 518,821.03, 778,255.40 and 158,966.11 is: 238,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,821.03 : 778,255.40 = 158,966.11 : x
  2. Step 2: Convert to fraction form
    518,821.03/778,255.40 = 158,966.11/x
  3. Step 3: Cross multiply
    518,821.03x = 778,255.40 × 158,966.11
  4. Step 4: Simplify right side
    518,821.03x = 123,716,233,524.49
  5. Step 5: Solve for x
    x = 123,716,233,524.49/518,821.03
  6. Step 6: Final answer
    x = 238,456.47

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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.