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Finding the Fourth Proportional to 565,839.05, 782,914.05 and 493,393.01

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Solution

The fourth proportional to 565,839.05, 782,914.05 and 493,393.01 is: 682,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,839.05 : 782,914.05 = 493,393.01 : x
  2. Step 2: Convert to fraction form
    565,839.05/782,914.05 = 493,393.01/x
  3. Step 3: Cross multiply
    565,839.05x = 782,914.05 × 493,393.01
  4. Step 4: Simplify right side
    565,839.05x = 386,284,319,700.79
  5. Step 5: Solve for x
    x = 386,284,319,700.79/565,839.05
  6. Step 6: Final answer
    x = 682,675.26

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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.