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Finding the Fourth Proportional to 449,030.48, 619,656.36 and 247,813.52

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Solution

The fourth proportional to 449,030.48, 619,656.36 and 247,813.52 is: 341,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,030.48 : 619,656.36 = 247,813.52 : x
  2. Step 2: Convert to fraction form
    449,030.48/619,656.36 = 247,813.52/x
  3. Step 3: Cross multiply
    449,030.48x = 619,656.36 × 247,813.52
  4. Step 4: Simplify right side
    449,030.48x = 153,559,223,761.99
  5. Step 5: Solve for x
    x = 153,559,223,761.99/449,030.48
  6. Step 6: Final answer
    x = 341,979.51

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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.