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Finding the Fourth Proportional to 374,384.88, 561,681.96 and 216,324.72

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Solution

The fourth proportional to 374,384.88, 561,681.96 and 216,324.72 is: 324,547.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,384.88 : 561,681.96 = 216,324.72 : x
  2. Step 2: Convert to fraction form
    374,384.88/561,681.96 = 216,324.72/x
  3. Step 3: Cross multiply
    374,384.88x = 561,681.96 × 216,324.72
  4. Step 4: Simplify right side
    374,384.88x = 121,505,692,726.05
  5. Step 5: Solve for x
    x = 121,505,692,726.05/374,384.88
  6. Step 6: Final answer
    x = 324,547.54

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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.