Home / 405,280.20-607,920.30-124,883.40

Finding the Fourth Proportional to 405,280.20, 607,920.30 and 124,883.40

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Solution

The fourth proportional to 405,280.20, 607,920.30 and 124,883.40 is: 187,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,280.20 : 607,920.30 = 124,883.40 : x
  2. Step 2: Convert to fraction form
    405,280.20/607,920.30 = 124,883.40/x
  3. Step 3: Cross multiply
    405,280.20x = 607,920.30 × 124,883.40
  4. Step 4: Simplify right side
    405,280.20x = 75,919,153,993.02
  5. Step 5: Solve for x
    x = 75,919,153,993.02/405,280.20
  6. Step 6: Final answer
    x = 187,325.10

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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.