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Finding the Fourth Proportional to 328,696.71, 453,622.86 and 185,404.47

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Solution

The fourth proportional to 328,696.71, 453,622.86 and 185,404.47 is: 255,870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,696.71 : 453,622.86 = 185,404.47 : x
  2. Step 2: Convert to fraction form
    328,696.71/453,622.86 = 185,404.47/x
  3. Step 3: Cross multiply
    328,696.71x = 453,622.86 × 185,404.47
  4. Step 4: Simplify right side
    328,696.71x = 84,103,705,938.18
  5. Step 5: Solve for x
    x = 84,103,705,938.18/328,696.71
  6. Step 6: Final answer
    x = 255,870.24

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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.