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Finding the Fourth Proportional to 562,208.56, 775,847.76 and 307,561.60

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Solution

The fourth proportional to 562,208.56, 775,847.76 and 307,561.60 is: 424,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,208.56 : 775,847.76 = 307,561.60 : x
  2. Step 2: Convert to fraction form
    562,208.56/775,847.76 = 307,561.60/x
  3. Step 3: Cross multiply
    562,208.56x = 775,847.76 × 307,561.60
  4. Step 4: Simplify right side
    562,208.56x = 238,620,978,422.02
  5. Step 5: Solve for x
    x = 238,620,978,422.02/562,208.56
  6. Step 6: Final answer
    x = 424,434.98

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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.