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Finding the Fourth Proportional to 607,999.60, 912,085.80 and 187,231.60

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Solution

The fourth proportional to 607,999.60, 912,085.80 and 187,231.60 is: 280,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,999.60 : 912,085.80 = 187,231.60 : x
  2. Step 2: Convert to fraction form
    607,999.60/912,085.80 = 187,231.60/x
  3. Step 3: Cross multiply
    607,999.60x = 912,085.80 × 187,231.60
  4. Step 4: Simplify right side
    607,999.60x = 170,771,283,671.28
  5. Step 5: Solve for x
    x = 170,771,283,671.28/607,999.60
  6. Step 6: Final answer
    x = 280,874.01

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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.