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Finding the Fourth Proportional to 543,887.54, 750,520.81 and 314,459.55

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Solution

The fourth proportional to 543,887.54, 750,520.81 and 314,459.55 is: 433,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,887.54 : 750,520.81 = 314,459.55 : x
  2. Step 2: Convert to fraction form
    543,887.54/750,520.81 = 314,459.55/x
  3. Step 3: Cross multiply
    543,887.54x = 750,520.81 × 314,459.55
  4. Step 4: Simplify right side
    543,887.54x = 236,008,437,455.73
  5. Step 5: Solve for x
    x = 236,008,437,455.73/543,887.54
  6. Step 6: Final answer
    x = 433,928.74

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1.5x scale

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.