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Finding the Fourth Proportional to 615,220.48, 922,824.96 and 194,496.40

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Solution

The fourth proportional to 615,220.48, 922,824.96 and 194,496.40 is: 291,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,220.48 : 922,824.96 = 194,496.40 : x
  2. Step 2: Convert to fraction form
    615,220.48/922,824.96 = 194,496.40/x
  3. Step 3: Cross multiply
    615,220.48x = 922,824.96 × 194,496.40
  4. Step 4: Simplify right side
    615,220.48x = 179,486,132,550.14
  5. Step 5: Solve for x
    x = 179,486,132,550.14/615,220.48
  6. Step 6: Final answer
    x = 291,742.78

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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.