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Finding the Fourth Proportional to 314,754.90, 472,131.76 and 98,630.18

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Solution

The fourth proportional to 314,754.90, 472,131.76 and 98,630.18 is: 147,945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,754.90 : 472,131.76 = 98,630.18 : x
  2. Step 2: Convert to fraction form
    314,754.90/472,131.76 = 98,630.18/x
  3. Step 3: Cross multiply
    314,754.90x = 472,131.76 × 98,630.18
  4. Step 4: Simplify right side
    314,754.90x = 46,566,440,472.52
  5. Step 5: Solve for x
    x = 46,566,440,472.52/314,754.90
  6. Step 6: Final answer
    x = 147,945.09

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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.