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Finding the Fourth Proportional to 756,978.08, 1,044,600.41 and 430,333.90

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Solution

The fourth proportional to 756,978.08, 1,044,600.41 and 430,333.90 is: 593,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,978.08 : 1,044,600.41 = 430,333.90 : x
  2. Step 2: Convert to fraction form
    756,978.08/1,044,600.41 = 430,333.90/x
  3. Step 3: Cross multiply
    756,978.08x = 1,044,600.41 × 430,333.90
  4. Step 4: Simplify right side
    756,978.08x = 449,526,966,841.23
  5. Step 5: Solve for x
    x = 449,526,966,841.23/756,978.08
  6. Step 6: Final answer
    x = 593,844.10

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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.