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Finding the Fourth Proportional to 314,862.40, 472,293.60 and 165,044.80

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Solution

The fourth proportional to 314,862.40, 472,293.60 and 165,044.80 is: 247,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,862.40 : 472,293.60 = 165,044.80 : x
  2. Step 2: Convert to fraction form
    314,862.40/472,293.60 = 165,044.80/x
  3. Step 3: Cross multiply
    314,862.40x = 472,293.60 × 165,044.80
  4. Step 4: Simplify right side
    314,862.40x = 77,949,602,753.28
  5. Step 5: Solve for x
    x = 77,949,602,753.28/314,862.40
  6. Step 6: Final answer
    x = 247,567.20

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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.