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Finding the Fourth Proportional to 379,533.47, 524,148.37 and 328,300.22

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Solution

The fourth proportional to 379,533.47, 524,148.37 and 328,300.22 is: 453,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,533.47 : 524,148.37 = 328,300.22 : x
  2. Step 2: Convert to fraction form
    379,533.47/524,148.37 = 328,300.22/x
  3. Step 3: Cross multiply
    379,533.47x = 524,148.37 × 328,300.22
  4. Step 4: Simplify right side
    379,533.47x = 172,078,025,673.26
  5. Step 5: Solve for x
    x = 172,078,025,673.26/379,533.47
  6. Step 6: Final answer
    x = 453,393.55

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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.