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Finding the Fourth Proportional to 368,384.13, 508,184.01 and 215,322.33

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Solution

The fourth proportional to 368,384.13, 508,184.01 and 215,322.33 is: 297,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,384.13 : 508,184.01 = 215,322.33 : x
  2. Step 2: Convert to fraction form
    368,384.13/508,184.01 = 215,322.33/x
  3. Step 3: Cross multiply
    368,384.13x = 508,184.01 × 215,322.33
  4. Step 4: Simplify right side
    368,384.13x = 109,423,365,101.94
  5. Step 5: Solve for x
    x = 109,423,365,101.94/368,384.13
  6. Step 6: Final answer
    x = 297,036.05

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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.