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Finding the Fourth Proportional to 574,887.89, 793,674.14 and 381,557.78

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Solution

The fourth proportional to 574,887.89, 793,674.14 and 381,557.78 is: 526,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,887.89 : 793,674.14 = 381,557.78 : x
  2. Step 2: Convert to fraction form
    574,887.89/793,674.14 = 381,557.78/x
  3. Step 3: Cross multiply
    574,887.89x = 793,674.14 × 381,557.78
  4. Step 4: Simplify right side
    574,887.89x = 302,832,540,994.02
  5. Step 5: Solve for x
    x = 302,832,540,994.02/574,887.89
  6. Step 6: Final answer
    x = 526,767.99

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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.