Home / 607,718.40-911,577.60-408,134.40

Finding the Fourth Proportional to 607,718.40, 911,577.60 and 408,134.40

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Solution

The fourth proportional to 607,718.40, 911,577.60 and 408,134.40 is: 612,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,718.40 : 911,577.60 = 408,134.40 : x
  2. Step 2: Convert to fraction form
    607,718.40/911,577.60 = 408,134.40/x
  3. Step 3: Cross multiply
    607,718.40x = 911,577.60 × 408,134.40
  4. Step 4: Simplify right side
    607,718.40x = 372,046,176,829.44
  5. Step 5: Solve for x
    x = 372,046,176,829.44/607,718.40
  6. Step 6: Final answer
    x = 612,201.60

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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.