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Finding the Fourth Proportional to 328,678.10, 453,575.76 and 177,775.10

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Solution

The fourth proportional to 328,678.10, 453,575.76 and 177,775.10 is: 245,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,678.10 : 453,575.76 = 177,775.10 : x
  2. Step 2: Convert to fraction form
    328,678.10/453,575.76 = 177,775.10/x
  3. Step 3: Cross multiply
    328,678.10x = 453,575.76 × 177,775.10
  4. Step 4: Simplify right side
    328,678.10x = 80,634,476,091.58
  5. Step 5: Solve for x
    x = 80,634,476,091.58/328,678.10
  6. Step 6: Final answer
    x = 245,329.63

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1.5x scale

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.