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Finding the Fourth Proportional to 328,562.24, 492,842.28 and 79,244.24

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Solution

The fourth proportional to 328,562.24, 492,842.28 and 79,244.24 is: 118,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,562.24 : 492,842.28 = 79,244.24 : x
  2. Step 2: Convert to fraction form
    328,562.24/492,842.28 = 79,244.24/x
  3. Step 3: Cross multiply
    328,562.24x = 492,842.28 × 79,244.24
  4. Step 4: Simplify right side
    328,562.24x = 39,054,911,918.47
  5. Step 5: Solve for x
    x = 39,054,911,918.47/328,562.24
  6. Step 6: Final answer
    x = 118,866.10

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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.