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Finding the Fourth Proportional to 478,531.72, 716,709.48 and 371,054.44

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Solution

The fourth proportional to 478,531.72, 716,709.48 and 371,054.44 is: 555,737.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,531.72 : 716,709.48 = 371,054.44 : x
  2. Step 2: Convert to fraction form
    478,531.72/716,709.48 = 371,054.44/x
  3. Step 3: Cross multiply
    478,531.72x = 716,709.48 × 371,054.44
  4. Step 4: Simplify right side
    478,531.72x = 265,938,234,744.09
  5. Step 5: Solve for x
    x = 265,938,234,744.09/478,531.72
  6. Step 6: Final answer
    x = 555,737.95

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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.