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Finding the Fourth Proportional to 615,300.24, 922,946.22 and 331,124.49

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Solution

The fourth proportional to 615,300.24, 922,946.22 and 331,124.49 is: 496,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,300.24 : 922,946.22 = 331,124.49 : x
  2. Step 2: Convert to fraction form
    615,300.24/922,946.22 = 331,124.49/x
  3. Step 3: Cross multiply
    615,300.24x = 922,946.22 × 331,124.49
  4. Step 4: Simplify right side
    615,300.24x = 305,610,096,394.93
  5. Step 5: Solve for x
    x = 305,610,096,394.93/615,300.24
  6. Step 6: Final answer
    x = 496,684.51

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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.