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Finding the Fourth Proportional to 368,709.78, 508,868 and 207,596.24

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Solution

The fourth proportional to 368,709.78, 508,868 and 207,596.24 is: 286,510.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,709.78 : 508,868 = 207,596.24 : x
  2. Step 2: Convert to fraction form
    368,709.78/508,868 = 207,596.24/x
  3. Step 3: Cross multiply
    368,709.78x = 508,868 × 207,596.24
  4. Step 4: Simplify right side
    368,709.78x = 105,639,083,456.32
  5. Step 5: Solve for x
    x = 105,639,083,456.32/368,709.78
  6. Step 6: Final answer
    x = 286,510.12

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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.