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Finding the Fourth Proportional to 472,419.28, 708,254.70 and 235,640.08

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Solution

The fourth proportional to 472,419.28, 708,254.70 and 235,640.08 is: 353,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,419.28 : 708,254.70 = 235,640.08 : x
  2. Step 2: Convert to fraction form
    472,419.28/708,254.70 = 235,640.08/x
  3. Step 3: Cross multiply
    472,419.28x = 708,254.70 × 235,640.08
  4. Step 4: Simplify right side
    472,419.28x = 166,893,194,168.38
  5. Step 5: Solve for x
    x = 166,893,194,168.38/472,419.28
  6. Step 6: Final answer
    x = 353,273.46

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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.