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Finding the Fourth Proportional to 328,817.60, 492,934.80 and 160,243.64

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Solution

The fourth proportional to 328,817.60, 492,934.80 and 160,243.64 is: 240,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,817.60 : 492,934.80 = 160,243.64 : x
  2. Step 2: Convert to fraction form
    328,817.60/492,934.80 = 160,243.64/x
  3. Step 3: Cross multiply
    328,817.60x = 492,934.80 × 160,243.64
  4. Step 4: Simplify right side
    328,817.60x = 78,989,666,634.67
  5. Step 5: Solve for x
    x = 78,989,666,634.67/328,817.60
  6. Step 6: Final answer
    x = 240,223.35

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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.