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Finding the Fourth Proportional to 615,510.85, 923,368.35 and 216,048.01

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Solution

The fourth proportional to 615,510.85, 923,368.35 and 216,048.01 is: 324,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,510.85 : 923,368.35 = 216,048.01 : x
  2. Step 2: Convert to fraction form
    615,510.85/923,368.35 = 216,048.01/x
  3. Step 3: Cross multiply
    615,510.85x = 923,368.35 × 216,048.01
  4. Step 4: Simplify right side
    615,510.85x = 199,491,894,514.48
  5. Step 5: Solve for x
    x = 199,491,894,514.48/615,510.85
  6. Step 6: Final answer
    x = 324,107.84

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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.