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Finding the Fourth Proportional to 615,222.54, 849,004.34 and 343,274.56

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Solution

The fourth proportional to 615,222.54, 849,004.34 and 343,274.56 is: 473,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,222.54 : 849,004.34 = 343,274.56 : x
  2. Step 2: Convert to fraction form
    615,222.54/849,004.34 = 343,274.56/x
  3. Step 3: Cross multiply
    615,222.54x = 849,004.34 × 343,274.56
  4. Step 4: Simplify right side
    615,222.54x = 291,441,587,412.71
  5. Step 5: Solve for x
    x = 291,441,587,412.71/615,222.54
  6. Step 6: Final answer
    x = 473,717.34

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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.