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Finding the Fourth Proportional to 314,846.40, 472,269.60 and 165,028.80

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Solution

The fourth proportional to 314,846.40, 472,269.60 and 165,028.80 is: 247,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,846.40 : 472,269.60 = 165,028.80 : x
  2. Step 2: Convert to fraction form
    314,846.40/472,269.60 = 165,028.80/x
  3. Step 3: Cross multiply
    314,846.40x = 472,269.60 × 165,028.80
  4. Step 4: Simplify right side
    314,846.40x = 77,938,085,364.48
  5. Step 5: Solve for x
    x = 77,938,085,364.48/314,846.40
  6. Step 6: Final answer
    x = 247,543.20

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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.