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Finding the Fourth Proportional to 366,813.40, 550,220.10 and 207,381.10

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Solution

The fourth proportional to 366,813.40, 550,220.10 and 207,381.10 is: 311,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,813.40 : 550,220.10 = 207,381.10 : x
  2. Step 2: Convert to fraction form
    366,813.40/550,220.10 = 207,381.10/x
  3. Step 3: Cross multiply
    366,813.40x = 550,220.10 × 207,381.10
  4. Step 4: Simplify right side
    366,813.40x = 114,105,249,580.11
  5. Step 5: Solve for x
    x = 114,105,249,580.11/366,813.40
  6. Step 6: Final answer
    x = 311,071.65

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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.