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Finding the Fourth Proportional to 553,195.20, 829,792.80 and 366,206.70

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Solution

The fourth proportional to 553,195.20, 829,792.80 and 366,206.70 is: 549,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,195.20 : 829,792.80 = 366,206.70 : x
  2. Step 2: Convert to fraction form
    553,195.20/829,792.80 = 366,206.70/x
  3. Step 3: Cross multiply
    553,195.20x = 829,792.80 × 366,206.70
  4. Step 4: Simplify right side
    553,195.20x = 303,875,682,971.76
  5. Step 5: Solve for x
    x = 303,875,682,971.76/553,195.20
  6. Step 6: Final answer
    x = 549,310.05

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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.