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Finding the Fourth Proportional to 641,763.66, 885,830.83 and 370,012.96

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Solution

The fourth proportional to 641,763.66, 885,830.83 and 370,012.96 is: 510,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,763.66 : 885,830.83 = 370,012.96 : x
  2. Step 2: Convert to fraction form
    641,763.66/885,830.83 = 370,012.96/x
  3. Step 3: Cross multiply
    641,763.66x = 885,830.83 × 370,012.96
  4. Step 4: Simplify right side
    641,763.66x = 327,768,889,731.14
  5. Step 5: Solve for x
    x = 327,768,889,731.14/641,763.66
  6. Step 6: Final answer
    x = 510,731.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.