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Finding the Fourth Proportional to 368,718.33, 508,841.14 and 207,579.49

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Solution

The fourth proportional to 368,718.33, 508,841.14 and 207,579.49 is: 286,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,718.33 : 508,841.14 = 207,579.49 : x
  2. Step 2: Convert to fraction form
    368,718.33/508,841.14 = 207,579.49/x
  3. Step 3: Cross multiply
    368,718.33x = 508,841.14 × 207,579.49
  4. Step 4: Simplify right side
    368,718.33x = 105,624,984,332.22
  5. Step 5: Solve for x
    x = 105,624,984,332.22/368,718.33
  6. Step 6: Final answer
    x = 286,465.24

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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.