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Finding the Fourth Proportional to 703,770.80, 972,010.83 and 463,127.68

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Solution

The fourth proportional to 703,770.80, 972,010.83 and 463,127.68 is: 639,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,770.80 : 972,010.83 = 463,127.68 : x
  2. Step 2: Convert to fraction form
    703,770.80/972,010.83 = 463,127.68/x
  3. Step 3: Cross multiply
    703,770.80x = 972,010.83 × 463,127.68
  4. Step 4: Simplify right side
    703,770.80x = 450,165,120,632.77
  5. Step 5: Solve for x
    x = 450,165,120,632.77/703,770.80
  6. Step 6: Final answer
    x = 639,647.34

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Double scale
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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.