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Finding the Fourth Proportional to 368,491.24, 508,512.01 and 207,346.20

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Solution

The fourth proportional to 368,491.24, 508,512.01 and 207,346.20 is: 286,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,491.24 : 508,512.01 = 207,346.20 : x
  2. Step 2: Convert to fraction form
    368,491.24/508,512.01 = 207,346.20/x
  3. Step 3: Cross multiply
    368,491.24x = 508,512.01 × 207,346.20
  4. Step 4: Simplify right side
    368,491.24x = 105,438,032,927.86
  5. Step 5: Solve for x
    x = 105,438,032,927.86/368,491.24
  6. Step 6: Final answer
    x = 286,134.44

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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.