Home / 721,091.70-1,081,637.55-606,930.30

Finding the Fourth Proportional to 721,091.70, 1,081,637.55 and 606,930.30

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Solution

The fourth proportional to 721,091.70, 1,081,637.55 and 606,930.30 is: 910,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,091.70 : 1,081,637.55 = 606,930.30 : x
  2. Step 2: Convert to fraction form
    721,091.70/1,081,637.55 = 606,930.30/x
  3. Step 3: Cross multiply
    721,091.70x = 1,081,637.55 × 606,930.30
  4. Step 4: Simplify right side
    721,091.70x = 656,478,602,712.77
  5. Step 5: Solve for x
    x = 656,478,602,712.77/721,091.70
  6. Step 6: Final answer
    x = 910,395.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.