Home / 945,712.38-1,303,558.51-639,677.15

Finding the Fourth Proportional to 945,712.38, 1,303,558.51 and 639,677.15

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Solution

The fourth proportional to 945,712.38, 1,303,558.51 and 639,677.15 is: 881,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,712.38 : 1,303,558.51 = 639,677.15 : x
  2. Step 2: Convert to fraction form
    945,712.38/1,303,558.51 = 639,677.15/x
  3. Step 3: Cross multiply
    945,712.38x = 1,303,558.51 × 639,677.15
  4. Step 4: Simplify right side
    945,712.38x = 833,856,590,539.84
  5. Step 5: Solve for x
    x = 833,856,590,539.84/945,712.38
  6. Step 6: Final answer
    x = 881,723.25

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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.