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Finding the Fourth Proportional to 339,875.90, 469,040.78 and 186,925.92

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Solution

The fourth proportional to 339,875.90, 469,040.78 and 186,925.92 is: 257,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,875.90 : 469,040.78 = 186,925.92 : x
  2. Step 2: Convert to fraction form
    339,875.90/469,040.78 = 186,925.92/x
  3. Step 3: Cross multiply
    339,875.90x = 469,040.78 × 186,925.92
  4. Step 4: Simplify right side
    339,875.90x = 87,675,879,319.02
  5. Step 5: Solve for x
    x = 87,675,879,319.02/339,875.90
  6. Step 6: Final answer
    x = 257,964.39

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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.