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Finding the Fourth Proportional to 662,128.65, 993,834.50 and 626,164.65

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Solution

The fourth proportional to 662,128.65, 993,834.50 and 626,164.65 is: 939,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,128.65 : 993,834.50 = 626,164.65 : x
  2. Step 2: Convert to fraction form
    662,128.65/993,834.50 = 626,164.65/x
  3. Step 3: Cross multiply
    662,128.65x = 993,834.50 × 626,164.65
  4. Step 4: Simplify right side
    662,128.65x = 622,304,028,719.60
  5. Step 5: Solve for x
    x = 622,304,028,719.60/662,128.65
  6. Step 6: Final answer
    x = 939,853.65

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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.