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Finding the Fourth Proportional to 488,045.30, 731,114.55 and 336,215.56

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Solution

The fourth proportional to 488,045.30, 731,114.55 and 336,215.56 is: 503,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,045.30 : 731,114.55 = 336,215.56 : x
  2. Step 2: Convert to fraction form
    488,045.30/731,114.55 = 336,215.56/x
  3. Step 3: Cross multiply
    488,045.30x = 731,114.55 × 336,215.56
  4. Step 4: Simplify right side
    488,045.30x = 245,812,086,655.02
  5. Step 5: Solve for x
    x = 245,812,086,655.02/488,045.30
  6. Step 6: Final answer
    x = 503,666.54

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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.