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Finding the Fourth Proportional to 328,643.82, 453,528.47 and 177,740.82

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Solution

The fourth proportional to 328,643.82, 453,528.47 and 177,740.82 is: 245,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,643.82 : 453,528.47 = 177,740.82 : x
  2. Step 2: Convert to fraction form
    328,643.82/453,528.47 = 177,740.82/x
  3. Step 3: Cross multiply
    328,643.82x = 453,528.47 × 177,740.82
  4. Step 4: Simplify right side
    328,643.82x = 80,610,518,994.80
  5. Step 5: Solve for x
    x = 80,610,518,994.80/328,643.82
  6. Step 6: Final answer
    x = 245,282.32

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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.