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Finding the Fourth Proportional to 615,281.48, 849,086.85 and 343,346.49

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Solution

The fourth proportional to 615,281.48, 849,086.85 and 343,346.49 is: 473,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,281.48 : 849,086.85 = 343,346.49 : x
  2. Step 2: Convert to fraction form
    615,281.48/849,086.85 = 343,346.49/x
  3. Step 3: Cross multiply
    615,281.48x = 849,086.85 × 343,346.49
  4. Step 4: Simplify right side
    615,281.48x = 291,530,989,652.66
  5. Step 5: Solve for x
    x = 291,530,989,652.66/615,281.48
  6. Step 6: Final answer
    x = 473,817.27

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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.