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Finding the Fourth Proportional to 346,644.90, 520,064.55 and 147,060.90

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Solution

The fourth proportional to 346,644.90, 520,064.55 and 147,060.90 is: 220,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,644.90 : 520,064.55 = 147,060.90 : x
  2. Step 2: Convert to fraction form
    346,644.90/520,064.55 = 147,060.90/x
  3. Step 3: Cross multiply
    346,644.90x = 520,064.55 × 147,060.90
  4. Step 4: Simplify right side
    346,644.90x = 76,481,160,781.10
  5. Step 5: Solve for x
    x = 76,481,160,781.10/346,644.90
  6. Step 6: Final answer
    x = 220,632.59

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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.