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Finding the Fourth Proportional to 615,993.77, 850,062.42 and 344,065.52

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Solution

The fourth proportional to 615,993.77, 850,062.42 and 344,065.52 is: 474,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,993.77 : 850,062.42 = 344,065.52 : x
  2. Step 2: Convert to fraction form
    615,993.77/850,062.42 = 344,065.52/x
  3. Step 3: Cross multiply
    615,993.77x = 850,062.42 × 344,065.52
  4. Step 4: Simplify right side
    615,993.77x = 292,477,164,319.45
  5. Step 5: Solve for x
    x = 292,477,164,319.45/615,993.77
  6. Step 6: Final answer
    x = 474,805.40

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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.