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Finding the Fourth Proportional to 346,728.20, 520,092.30 and 97,377.80

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Solution

The fourth proportional to 346,728.20, 520,092.30 and 97,377.80 is: 146,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,728.20 : 520,092.30 = 97,377.80 : x
  2. Step 2: Convert to fraction form
    346,728.20/520,092.30 = 97,377.80/x
  3. Step 3: Cross multiply
    346,728.20x = 520,092.30 × 97,377.80
  4. Step 4: Simplify right side
    346,728.20x = 50,645,443,970.94
  5. Step 5: Solve for x
    x = 50,645,443,970.94/346,728.20
  6. Step 6: Final answer
    x = 146,066.70

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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.