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Finding the Fourth Proportional to 368,567.54, 508,622.15 and 207,422.58

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Solution

The fourth proportional to 368,567.54, 508,622.15 and 207,422.58 is: 286,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,567.54 : 508,622.15 = 207,422.58 : x
  2. Step 2: Convert to fraction form
    368,567.54/508,622.15 = 207,422.58/x
  3. Step 3: Cross multiply
    368,567.54x = 508,622.15 × 207,422.58
  4. Step 4: Simplify right side
    368,567.54x = 105,499,718,598.15
  5. Step 5: Solve for x
    x = 105,499,718,598.15/368,567.54
  6. Step 6: Final answer
    x = 286,242.57

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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.