Home / 719,058.35-992,299.37-396,768.21

Finding the Fourth Proportional to 719,058.35, 992,299.37 and 396,768.21

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Solution

The fourth proportional to 719,058.35, 992,299.37 and 396,768.21 is: 547,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,058.35 : 992,299.37 = 396,768.21 : x
  2. Step 2: Convert to fraction form
    719,058.35/992,299.37 = 396,768.21/x
  3. Step 3: Cross multiply
    719,058.35x = 992,299.37 × 396,768.21
  4. Step 4: Simplify right side
    719,058.35x = 393,712,844,819.03
  5. Step 5: Solve for x
    x = 393,712,844,819.03/719,058.35
  6. Step 6: Final answer
    x = 547,539.49

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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.