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Finding the Fourth Proportional to 549,143.64, 757,427.49 and 503,967.54

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Solution

The fourth proportional to 549,143.64, 757,427.49 and 503,967.54 is: 695,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,143.64 : 757,427.49 = 503,967.54 : x
  2. Step 2: Convert to fraction form
    549,143.64/757,427.49 = 503,967.54/x
  3. Step 3: Cross multiply
    549,143.64x = 757,427.49 × 503,967.54
  4. Step 4: Simplify right side
    549,143.64x = 381,718,868,863.68
  5. Step 5: Solve for x
    x = 381,718,868,863.68/549,143.64
  6. Step 6: Final answer
    x = 695,116.62

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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.