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Finding the Fourth Proportional to 368,712.76, 508,833.46 and 207,573.93

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Solution

The fourth proportional to 368,712.76, 508,833.46 and 207,573.93 is: 286,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,712.76 : 508,833.46 = 207,573.93 : x
  2. Step 2: Convert to fraction form
    368,712.76/508,833.46 = 207,573.93/x
  3. Step 3: Cross multiply
    368,712.76x = 508,833.46 × 207,573.93
  4. Step 4: Simplify right side
    368,712.76x = 105,620,561,007.70
  5. Step 5: Solve for x
    x = 105,620,561,007.70/368,712.76
  6. Step 6: Final answer
    x = 286,457.57

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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.