Home / 947,111.55-1,306,997.46-517,380.63

Finding the Fourth Proportional to 947,111.55, 1,306,997.46 and 517,380.63

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Solution

The fourth proportional to 947,111.55, 1,306,997.46 and 517,380.63 is: 713,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,111.55 : 1,306,997.46 = 517,380.63 : x
  2. Step 2: Convert to fraction form
    947,111.55/1,306,997.46 = 517,380.63/x
  3. Step 3: Cross multiply
    947,111.55x = 1,306,997.46 × 517,380.63
  4. Step 4: Simplify right side
    947,111.55x = 676,215,169,263.20
  5. Step 5: Solve for x
    x = 676,215,169,263.20/947,111.55
  6. Step 6: Final answer
    x = 713,976.27

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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.