Home / 719,333.03-992,679.67-397,043.21

Finding the Fourth Proportional to 719,333.03, 992,679.67 and 397,043.21

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Solution

The fourth proportional to 719,333.03, 992,679.67 and 397,043.21 is: 547,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,333.03 : 992,679.67 = 397,043.21 : x
  2. Step 2: Convert to fraction form
    719,333.03/992,679.67 = 397,043.21/x
  3. Step 3: Cross multiply
    719,333.03x = 992,679.67 × 397,043.21
  4. Step 4: Simplify right side
    719,333.03x = 394,136,725,656.54
  5. Step 5: Solve for x
    x = 394,136,725,656.54/719,333.03
  6. Step 6: Final answer
    x = 547,919.68

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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.