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Finding the Fourth Proportional to 615,007.28, 848,725.08 and 343,073.24

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Solution

The fourth proportional to 615,007.28, 848,725.08 and 343,073.24 is: 473,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,007.28 : 848,725.08 = 343,073.24 : x
  2. Step 2: Convert to fraction form
    615,007.28/848,725.08 = 343,073.24/x
  3. Step 3: Cross multiply
    615,007.28x = 848,725.08 × 343,073.24
  4. Step 4: Simplify right side
    615,007.28x = 291,174,863,064.86
  5. Step 5: Solve for x
    x = 291,174,863,064.86/615,007.28
  6. Step 6: Final answer
    x = 473,449.46

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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.