Home / 812,608.03-1,121,026.89-526,220.38

Finding the Fourth Proportional to 812,608.03, 1,121,026.89 and 526,220.38

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Solution

The fourth proportional to 812,608.03, 1,121,026.89 and 526,220.38 is: 725,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,608.03 : 1,121,026.89 = 526,220.38 : x
  2. Step 2: Convert to fraction form
    812,608.03/1,121,026.89 = 526,220.38/x
  3. Step 3: Cross multiply
    812,608.03x = 1,121,026.89 × 526,220.38
  4. Step 4: Simplify right side
    812,608.03x = 589,907,196,046.02
  5. Step 5: Solve for x
    x = 589,907,196,046.02/812,608.03
  6. Step 6: Final answer
    x = 725,943.10

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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.