Home / 819,594.34-1,131,114.81-497,386.42

Finding the Fourth Proportional to 819,594.34, 1,131,114.81 and 497,386.42

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Solution

The fourth proportional to 819,594.34, 1,131,114.81 and 497,386.42 is: 686,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,594.34 : 1,131,114.81 = 497,386.42 : x
  2. Step 2: Convert to fraction form
    819,594.34/1,131,114.81 = 497,386.42/x
  3. Step 3: Cross multiply
    819,594.34x = 1,131,114.81 × 497,386.42
  4. Step 4: Simplify right side
    819,594.34x = 562,601,145,954.88
  5. Step 5: Solve for x
    x = 562,601,145,954.88/819,594.34
  6. Step 6: Final answer
    x = 686,438.54

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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.