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Finding the Fourth Proportional to 682,790.30, 957,306.10 and 682,790.30

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Solution

The fourth proportional to 682,790.30, 957,306.10 and 682,790.30 is: 957,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,790.30 : 957,306.10 = 682,790.30 : x
  2. Step 2: Convert to fraction form
    682,790.30/957,306.10 = 682,790.30/x
  3. Step 3: Cross multiply
    682,790.30x = 957,306.10 × 682,790.30
  4. Step 4: Simplify right side
    682,790.30x = 653,639,319,210.83
  5. Step 5: Solve for x
    x = 653,639,319,210.83/682,790.30
  6. Step 6: Final answer
    x = 957,306.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.