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Finding the Fourth Proportional to 368,423.84, 508,386.48 and 207,265.20

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Solution

The fourth proportional to 368,423.84, 508,386.48 and 207,265.20 is: 286,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,423.84 : 508,386.48 = 207,265.20 : x
  2. Step 2: Convert to fraction form
    368,423.84/508,386.48 = 207,265.20/x
  3. Step 3: Cross multiply
    368,423.84x = 508,386.48 × 207,265.20
  4. Step 4: Simplify right side
    368,423.84x = 105,370,825,454.50
  5. Step 5: Solve for x
    x = 105,370,825,454.50/368,423.84
  6. Step 6: Final answer
    x = 286,004.36

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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.