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Finding the Fourth Proportional to 368,436.30, 552,330.45 and 249,722.70

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Solution

The fourth proportional to 368,436.30, 552,330.45 and 249,722.70 is: 374,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,436.30 : 552,330.45 = 249,722.70 : x
  2. Step 2: Convert to fraction form
    368,436.30/552,330.45 = 249,722.70/x
  3. Step 3: Cross multiply
    368,436.30x = 552,330.45 × 249,722.70
  4. Step 4: Simplify right side
    368,436.30x = 137,929,451,266.22
  5. Step 5: Solve for x
    x = 137,929,451,266.22/368,436.30
  6. Step 6: Final answer
    x = 374,364.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.