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Finding the Fourth Proportional to 453,867.78, 626,312.74 and 249,879.97

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Solution

The fourth proportional to 453,867.78, 626,312.74 and 249,879.97 is: 344,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,867.78 : 626,312.74 = 249,879.97 : x
  2. Step 2: Convert to fraction form
    453,867.78/626,312.74 = 249,879.97/x
  3. Step 3: Cross multiply
    453,867.78x = 626,312.74 × 249,879.97
  4. Step 4: Simplify right side
    453,867.78x = 156,503,008,681.82
  5. Step 5: Solve for x
    x = 156,503,008,681.82/453,867.78
  6. Step 6: Final answer
    x = 344,820.71

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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.