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Finding the Fourth Proportional to 366,815.70, 550,223.55 and 320,159.70

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Solution

The fourth proportional to 366,815.70, 550,223.55 and 320,159.70 is: 480,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,815.70 : 550,223.55 = 320,159.70 : x
  2. Step 2: Convert to fraction form
    366,815.70/550,223.55 = 320,159.70/x
  3. Step 3: Cross multiply
    366,815.70x = 550,223.55 × 320,159.70
  4. Step 4: Simplify right side
    366,815.70x = 176,159,406,700.94
  5. Step 5: Solve for x
    x = 176,159,406,700.94/366,815.70
  6. Step 6: Final answer
    x = 480,239.55

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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.