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Finding the Fourth Proportional to 556,323.86, 767,825.22 and 326,881.10

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Solution

The fourth proportional to 556,323.86, 767,825.22 and 326,881.10 is: 451,153.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,323.86 : 767,825.22 = 326,881.10 : x
  2. Step 2: Convert to fraction form
    556,323.86/767,825.22 = 326,881.10/x
  3. Step 3: Cross multiply
    556,323.86x = 767,825.22 × 326,881.10
  4. Step 4: Simplify right side
    556,323.86x = 250,987,555,666.71
  5. Step 5: Solve for x
    x = 250,987,555,666.71/556,323.86
  6. Step 6: Final answer
    x = 451,153.68

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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.