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Finding the Fourth Proportional to 368,528, 508,562.66 and 207,382.96

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Solution

The fourth proportional to 368,528, 508,562.66 and 207,382.96 is: 286,185.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,528 : 508,562.66 = 207,382.96 : x
  2. Step 2: Convert to fraction form
    368,528/508,562.66 = 207,382.96/x
  3. Step 3: Cross multiply
    368,528x = 508,562.66 × 207,382.96
  4. Step 4: Simplify right side
    368,528x = 105,467,229,776.27
  5. Step 5: Solve for x
    x = 105,467,229,776.27/368,528
  6. Step 6: Final answer
    x = 286,185.12

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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.