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Finding the Fourth Proportional to 328,362.66, 453,130.20 and 185,120.64

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Solution

The fourth proportional to 328,362.66, 453,130.20 and 185,120.64 is: 255,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,362.66 : 453,130.20 = 185,120.64 : x
  2. Step 2: Convert to fraction form
    328,362.66/453,130.20 = 185,120.64/x
  3. Step 3: Cross multiply
    328,362.66x = 453,130.20 × 185,120.64
  4. Step 4: Simplify right side
    328,362.66x = 83,883,752,627.33
  5. Step 5: Solve for x
    x = 83,883,752,627.33/328,362.66
  6. Step 6: Final answer
    x = 255,460.69

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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.