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Finding the Fourth Proportional to 326,038.59, 489,198.68 and 176,384.31

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Solution

The fourth proportional to 326,038.59, 489,198.68 and 176,384.31 is: 264,652.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,038.59 : 489,198.68 = 176,384.31 : x
  2. Step 2: Convert to fraction form
    326,038.59/489,198.68 = 176,384.31/x
  3. Step 3: Cross multiply
    326,038.59x = 489,198.68 × 176,384.31
  4. Step 4: Simplify right side
    326,038.59x = 86,286,971,624.71
  5. Step 5: Solve for x
    x = 86,286,971,624.71/326,038.59
  6. Step 6: Final answer
    x = 264,652.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.