Home / 947,111.05-1,306,996.77-517,380.13

Finding the Fourth Proportional to 947,111.05, 1,306,996.77 and 517,380.13

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Solution

The fourth proportional to 947,111.05, 1,306,996.77 and 517,380.13 is: 713,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,111.05 : 1,306,996.77 = 517,380.13 : x
  2. Step 2: Convert to fraction form
    947,111.05/1,306,996.77 = 517,380.13/x
  3. Step 3: Cross multiply
    947,111.05x = 1,306,996.77 × 517,380.13
  4. Step 4: Simplify right side
    947,111.05x = 676,214,158,772.18
  5. Step 5: Solve for x
    x = 676,214,158,772.18/947,111.05
  6. Step 6: Final answer
    x = 713,975.58

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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.