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Finding the Fourth Proportional to 607,559.60, 911,339.40 and 186,780.80

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Solution

The fourth proportional to 607,559.60, 911,339.40 and 186,780.80 is: 280,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,559.60 : 911,339.40 = 186,780.80 : x
  2. Step 2: Convert to fraction form
    607,559.60/911,339.40 = 186,780.80/x
  3. Step 3: Cross multiply
    607,559.60x = 911,339.40 × 186,780.80
  4. Step 4: Simplify right side
    607,559.60x = 170,220,702,203.52
  5. Step 5: Solve for x
    x = 170,220,702,203.52/607,559.60
  6. Step 6: Final answer
    x = 280,171.20

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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.