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Finding the Fourth Proportional to 703,131.66, 970,263.21 and 412,711.83

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Solution

The fourth proportional to 703,131.66, 970,263.21 and 412,711.83 is: 569,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,131.66 : 970,263.21 = 412,711.83 : x
  2. Step 2: Convert to fraction form
    703,131.66/970,263.21 = 412,711.83/x
  3. Step 3: Cross multiply
    703,131.66x = 970,263.21 × 412,711.83
  4. Step 4: Simplify right side
    703,131.66x = 400,439,104,980.77
  5. Step 5: Solve for x
    x = 400,439,104,980.77/703,131.66
  6. Step 6: Final answer
    x = 569,508.00

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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.