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Finding the Fourth Proportional to 343,502.58, 474,041.15 and 190,535.79

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Solution

The fourth proportional to 343,502.58, 474,041.15 and 190,535.79 is: 262,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,502.58 : 474,041.15 = 190,535.79 : x
  2. Step 2: Convert to fraction form
    343,502.58/474,041.15 = 190,535.79/x
  3. Step 3: Cross multiply
    343,502.58x = 474,041.15 × 190,535.79
  4. Step 4: Simplify right side
    343,502.58x = 90,321,805,007.76
  5. Step 5: Solve for x
    x = 90,321,805,007.76/343,502.58
  6. Step 6: Final answer
    x = 262,943.60

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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.