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Finding the Fourth Proportional to 552,405.89, 761,888.26 and 358,875.96

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Solution

The fourth proportional to 552,405.89, 761,888.26 and 358,875.96 is: 494,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,405.89 : 761,888.26 = 358,875.96 : x
  2. Step 2: Convert to fraction form
    552,405.89/761,888.26 = 358,875.96/x
  3. Step 3: Cross multiply
    552,405.89x = 761,888.26 × 358,875.96
  4. Step 4: Simplify right side
    552,405.89x = 273,423,376,910.79
  5. Step 5: Solve for x
    x = 273,423,376,910.79/552,405.89
  6. Step 6: Final answer
    x = 494,968.25

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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.