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Finding the Fourth Proportional to 615,393.81, 923,503.08 and 216,035.76

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Solution

The fourth proportional to 615,393.81, 923,503.08 and 216,035.76 is: 324,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,393.81 : 923,503.08 = 216,035.76 : x
  2. Step 2: Convert to fraction form
    615,393.81/923,503.08 = 216,035.76/x
  3. Step 3: Cross multiply
    615,393.81x = 923,503.08 × 216,035.76
  4. Step 4: Simplify right side
    615,393.81x = 199,509,689,750.14
  5. Step 5: Solve for x
    x = 199,509,689,750.14/615,393.81
  6. Step 6: Final answer
    x = 324,198.40

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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.