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Finding the Fourth Proportional to 615,351.48, 849,183.22 and 343,416.48

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Solution

The fourth proportional to 615,351.48, 849,183.22 and 343,416.48 is: 473,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,351.48 : 849,183.22 = 343,416.48 : x
  2. Step 2: Convert to fraction form
    615,351.48/849,183.22 = 343,416.48/x
  3. Step 3: Cross multiply
    615,351.48x = 849,183.22 × 343,416.48
  4. Step 4: Simplify right side
    615,351.48x = 291,623,512,287.47
  5. Step 5: Solve for x
    x = 291,623,512,287.47/615,351.48
  6. Step 6: Final answer
    x = 473,913.73

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1.5x scale

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.