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Finding the Fourth Proportional to 347,285.80, 520,928.70 and 97,967.80

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Solution

The fourth proportional to 347,285.80, 520,928.70 and 97,967.80 is: 146,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,285.80 : 520,928.70 = 97,967.80 : x
  2. Step 2: Convert to fraction form
    347,285.80/520,928.70 = 97,967.80/x
  3. Step 3: Cross multiply
    347,285.80x = 520,928.70 × 97,967.80
  4. Step 4: Simplify right side
    347,285.80x = 51,034,238,695.86
  5. Step 5: Solve for x
    x = 51,034,238,695.86/347,285.80
  6. Step 6: Final answer
    x = 146,951.70

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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.