Home / 819,449.09-1,130,914.01-497,240.81

Finding the Fourth Proportional to 819,449.09, 1,130,914.01 and 497,240.81

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Solution

The fourth proportional to 819,449.09, 1,130,914.01 and 497,240.81 is: 686,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,449.09 : 1,130,914.01 = 497,240.81 : x
  2. Step 2: Convert to fraction form
    819,449.09/1,130,914.01 = 497,240.81/x
  3. Step 3: Cross multiply
    819,449.09x = 1,130,914.01 × 497,240.81
  4. Step 4: Simplify right side
    819,449.09x = 562,336,598,372.75
  5. Step 5: Solve for x
    x = 562,336,598,372.75/819,449.09
  6. Step 6: Final answer
    x = 686,237.38

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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.