Home / 812,699.48-1,122,279.14-608,395.70

Finding the Fourth Proportional to 812,699.48, 1,122,279.14 and 608,395.70

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Solution

The fourth proportional to 812,699.48, 1,122,279.14 and 608,395.70 is: 840,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,699.48 : 1,122,279.14 = 608,395.70 : x
  2. Step 2: Convert to fraction form
    812,699.48/1,122,279.14 = 608,395.70/x
  3. Step 3: Cross multiply
    812,699.48x = 1,122,279.14 × 608,395.70
  4. Step 4: Simplify right side
    812,699.48x = 682,789,802,975.70
  5. Step 5: Solve for x
    x = 682,789,802,975.70/812,699.48
  6. Step 6: Final answer
    x = 840,150.41

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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.