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Finding the Fourth Proportional to 556,325.61, 767,827.64 and 326,882.85

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Solution

The fourth proportional to 556,325.61, 767,827.64 and 326,882.85 is: 451,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,325.61 : 767,827.64 = 326,882.85 : x
  2. Step 2: Convert to fraction form
    556,325.61/767,827.64 = 326,882.85/x
  3. Step 3: Cross multiply
    556,325.61x = 767,827.64 × 326,882.85
  4. Step 4: Simplify right side
    556,325.61x = 250,989,687,271.97
  5. Step 5: Solve for x
    x = 250,989,687,271.97/556,325.61
  6. Step 6: Final answer
    x = 451,156.09

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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.