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Finding the Fourth Proportional to 368,709.54, 508,867.66 and 207,595.98

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Solution

The fourth proportional to 368,709.54, 508,867.66 and 207,595.98 is: 286,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,709.54 : 508,867.66 = 207,595.98 : x
  2. Step 2: Convert to fraction form
    368,709.54/508,867.66 = 207,595.98/x
  3. Step 3: Cross multiply
    368,709.54x = 508,867.66 × 207,595.98
  4. Step 4: Simplify right side
    368,709.54x = 105,638,880,568.01
  5. Step 5: Solve for x
    x = 105,638,880,568.01/368,709.54
  6. Step 6: Final answer
    x = 286,509.76

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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.