Home / 819,453.84-1,130,920.56-497,245.56

Finding the Fourth Proportional to 819,453.84, 1,130,920.56 and 497,245.56

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Solution

The fourth proportional to 819,453.84, 1,130,920.56 and 497,245.56 is: 686,243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,453.84 : 1,130,920.56 = 497,245.56 : x
  2. Step 2: Convert to fraction form
    819,453.84/1,130,920.56 = 497,245.56/x
  3. Step 3: Cross multiply
    819,453.84x = 1,130,920.56 × 497,245.56
  4. Step 4: Simplify right side
    819,453.84x = 562,345,227,172.71
  5. Step 5: Solve for x
    x = 562,345,227,172.71/819,453.84
  6. Step 6: Final answer
    x = 686,243.93

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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.