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Finding the Fourth Proportional to 374,632.10, 561,948.15 and 368,411.30

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Solution

The fourth proportional to 374,632.10, 561,948.15 and 368,411.30 is: 552,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,632.10 : 561,948.15 = 368,411.30 : x
  2. Step 2: Convert to fraction form
    374,632.10/561,948.15 = 368,411.30/x
  3. Step 3: Cross multiply
    374,632.10x = 561,948.15 × 368,411.30
  4. Step 4: Simplify right side
    374,632.10x = 207,028,048,474.10
  5. Step 5: Solve for x
    x = 207,028,048,474.10/374,632.10
  6. Step 6: Final answer
    x = 552,616.95

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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.