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Finding the Fourth Proportional to 615,167.61, 848,907.59 and 343,221.45

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Solution

The fourth proportional to 615,167.61, 848,907.59 and 343,221.45 is: 473,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,167.61 : 848,907.59 = 343,221.45 : x
  2. Step 2: Convert to fraction form
    615,167.61/848,907.59 = 343,221.45/x
  3. Step 3: Cross multiply
    615,167.61x = 848,907.59 × 343,221.45
  4. Step 4: Simplify right side
    615,167.61x = 291,363,292,239.70
  5. Step 5: Solve for x
    x = 291,363,292,239.70/615,167.61
  6. Step 6: Final answer
    x = 473,632.37

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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.