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Finding the Fourth Proportional to 539,726.65, 744,510.54 and 348,740.03

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Solution

The fourth proportional to 539,726.65, 744,510.54 and 348,740.03 is: 481,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,726.65 : 744,510.54 = 348,740.03 : x
  2. Step 2: Convert to fraction form
    539,726.65/744,510.54 = 348,740.03/x
  3. Step 3: Cross multiply
    539,726.65x = 744,510.54 × 348,740.03
  4. Step 4: Simplify right side
    539,726.65x = 259,640,628,054.92
  5. Step 5: Solve for x
    x = 259,640,628,054.92/539,726.65
  6. Step 6: Final answer
    x = 481,059.50

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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.