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Finding the Fourth Proportional to 539,988.74, 745,176.89 and 294,970.59

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Solution

The fourth proportional to 539,988.74, 745,176.89 and 294,970.59 is: 407,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,988.74 : 745,176.89 = 294,970.59 : x
  2. Step 2: Convert to fraction form
    539,988.74/745,176.89 = 294,970.59/x
  3. Step 3: Cross multiply
    539,988.74x = 745,176.89 × 294,970.59
  4. Step 4: Simplify right side
    539,988.74x = 219,805,264,709.68
  5. Step 5: Solve for x
    x = 219,805,264,709.68/539,988.74
  6. Step 6: Final answer
    x = 407,055.27

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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.