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Finding the Fourth Proportional to 541,374.47, 812,058.06 and 423,145.25

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Solution

The fourth proportional to 541,374.47, 812,058.06 and 423,145.25 is: 634,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,374.47 : 812,058.06 = 423,145.25 : x
  2. Step 2: Convert to fraction form
    541,374.47/812,058.06 = 423,145.25/x
  3. Step 3: Cross multiply
    541,374.47x = 812,058.06 × 423,145.25
  4. Step 4: Simplify right side
    541,374.47x = 343,618,510,813.22
  5. Step 5: Solve for x
    x = 343,618,510,813.22/541,374.47
  6. Step 6: Final answer
    x = 634,715.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.