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Finding the Fourth Proportional to 368,710.78, 508,869.38 and 207,597.24

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Solution

The fourth proportional to 368,710.78, 508,869.38 and 207,597.24 is: 286,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,710.78 : 508,869.38 = 207,597.24 : x
  2. Step 2: Convert to fraction form
    368,710.78/508,869.38 = 207,597.24/x
  3. Step 3: Cross multiply
    368,710.78x = 508,869.38 × 207,597.24
  4. Step 4: Simplify right side
    368,710.78x = 105,639,878,808.51
  5. Step 5: Solve for x
    x = 105,639,878,808.51/368,710.78
  6. Step 6: Final answer
    x = 286,511.50

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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.