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Finding the Fourth Proportional to 403,468.48, 556,788.09 and 242,326.27

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Solution

The fourth proportional to 403,468.48, 556,788.09 and 242,326.27 is: 334,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,468.48 : 556,788.09 = 242,326.27 : x
  2. Step 2: Convert to fraction form
    403,468.48/556,788.09 = 242,326.27/x
  3. Step 3: Cross multiply
    403,468.48x = 556,788.09 × 242,326.27
  4. Step 4: Simplify right side
    403,468.48x = 134,924,381,030.12
  5. Step 5: Solve for x
    x = 134,924,381,030.12/403,468.48
  6. Step 6: Final answer
    x = 334,411.21

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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.