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Finding the Fourth Proportional to 314,637.80, 472,263.90 and 157,044.20

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Solution

The fourth proportional to 314,637.80, 472,263.90 and 157,044.20 is: 235,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,637.80 : 472,263.90 = 157,044.20 : x
  2. Step 2: Convert to fraction form
    314,637.80/472,263.90 = 157,044.20/x
  3. Step 3: Cross multiply
    314,637.80x = 472,263.90 × 157,044.20
  4. Step 4: Simplify right side
    314,637.80x = 74,166,306,364.38
  5. Step 5: Solve for x
    x = 74,166,306,364.38/314,637.80
  6. Step 6: Final answer
    x = 235,719.63

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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.