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Finding the Fourth Proportional to 328,223.72, 492,335.58 and 103,601.68

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Solution

The fourth proportional to 328,223.72, 492,335.58 and 103,601.68 is: 155,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,223.72 : 492,335.58 = 103,601.68 : x
  2. Step 2: Convert to fraction form
    328,223.72/492,335.58 = 103,601.68/x
  3. Step 3: Cross multiply
    328,223.72x = 492,335.58 × 103,601.68
  4. Step 4: Simplify right side
    328,223.72x = 51,006,793,211.77
  5. Step 5: Solve for x
    x = 51,006,793,211.77/328,223.72
  6. Step 6: Final answer
    x = 155,402.52

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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.