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Finding the Fourth Proportional to 615,190.80, 922,786.20 and 575,533.20

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Solution

The fourth proportional to 615,190.80, 922,786.20 and 575,533.20 is: 863,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,190.80 : 922,786.20 = 575,533.20 : x
  2. Step 2: Convert to fraction form
    615,190.80/922,786.20 = 575,533.20/x
  3. Step 3: Cross multiply
    615,190.80x = 922,786.20 × 575,533.20
  4. Step 4: Simplify right side
    615,190.80x = 531,094,094,601.84
  5. Step 5: Solve for x
    x = 531,094,094,601.84/615,190.80
  6. Step 6: Final answer
    x = 863,299.80

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1.5x scale

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.