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Finding the Fourth Proportional to 314,717.95, 472,273.76 and 127,729.45

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Solution

The fourth proportional to 314,717.95, 472,273.76 and 127,729.45 is: 191,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,717.95 : 472,273.76 = 127,729.45 : x
  2. Step 2: Convert to fraction form
    314,717.95/472,273.76 = 127,729.45/x
  3. Step 3: Cross multiply
    314,717.95x = 472,273.76 × 127,729.45
  4. Step 4: Simplify right side
    314,717.95x = 60,323,267,614.23
  5. Step 5: Solve for x
    x = 60,323,267,614.23/314,717.95
  6. Step 6: Final answer
    x = 191,674.06

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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.