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Finding the Fourth Proportional to 438,283.98, 604,798.65 and 247,315.14

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Solution

The fourth proportional to 438,283.98, 604,798.65 and 247,315.14 is: 341,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,283.98 : 604,798.65 = 247,315.14 : x
  2. Step 2: Convert to fraction form
    438,283.98/604,798.65 = 247,315.14/x
  3. Step 3: Cross multiply
    438,283.98x = 604,798.65 × 247,315.14
  4. Step 4: Simplify right side
    438,283.98x = 149,575,862,796.56
  5. Step 5: Solve for x
    x = 149,575,862,796.56/438,283.98
  6. Step 6: Final answer
    x = 341,276.14

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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.