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Finding the Fourth Proportional to 360,393.76, 497,345.34 and 197,050.78

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Solution

The fourth proportional to 360,393.76, 497,345.34 and 197,050.78 is: 271,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,393.76 : 497,345.34 = 197,050.78 : x
  2. Step 2: Convert to fraction form
    360,393.76/497,345.34 = 197,050.78/x
  3. Step 3: Cross multiply
    360,393.76x = 497,345.34 × 197,050.78
  4. Step 4: Simplify right side
    360,393.76x = 98,002,287,176.37
  5. Step 5: Solve for x
    x = 98,002,287,176.37/360,393.76
  6. Step 6: Final answer
    x = 271,931.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.