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Finding the Fourth Proportional to 619,243.80, 928,865.70 and 585,029.40

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Solution

The fourth proportional to 619,243.80, 928,865.70 and 585,029.40 is: 877,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,243.80 : 928,865.70 = 585,029.40 : x
  2. Step 2: Convert to fraction form
    619,243.80/928,865.70 = 585,029.40/x
  3. Step 3: Cross multiply
    619,243.80x = 928,865.70 × 585,029.40
  4. Step 4: Simplify right side
    619,243.80x = 543,413,743,151.58
  5. Step 5: Solve for x
    x = 543,413,743,151.58/619,243.80
  6. Step 6: Final answer
    x = 877,544.10

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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.