Home / 830,679.20-1,246,018.80-618,102.80

Finding the Fourth Proportional to 830,679.20, 1,246,018.80 and 618,102.80

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Solution

The fourth proportional to 830,679.20, 1,246,018.80 and 618,102.80 is: 927,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,679.20 : 1,246,018.80 = 618,102.80 : x
  2. Step 2: Convert to fraction form
    830,679.20/1,246,018.80 = 618,102.80/x
  3. Step 3: Cross multiply
    830,679.20x = 1,246,018.80 × 618,102.80
  4. Step 4: Simplify right side
    830,679.20x = 770,167,709,132.64
  5. Step 5: Solve for x
    x = 770,167,709,132.64/830,679.20
  6. Step 6: Final answer
    x = 927,154.20

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Double scale
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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.