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Finding the Fourth Proportional to 562,631.56, 776,362.80 and 448,201.60

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Solution

The fourth proportional to 562,631.56, 776,362.80 and 448,201.60 is: 618,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,631.56 : 776,362.80 = 448,201.60 : x
  2. Step 2: Convert to fraction form
    562,631.56/776,362.80 = 448,201.60/x
  3. Step 3: Cross multiply
    562,631.56x = 776,362.80 × 448,201.60
  4. Step 4: Simplify right side
    562,631.56x = 347,967,049,140.48
  5. Step 5: Solve for x
    x = 347,967,049,140.48/562,631.56
  6. Step 6: Final answer
    x = 618,463.44

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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.