Home / 532,155.36-734,353.20-290,431.20

Finding the Fourth Proportional to 532,155.36, 734,353.20 and 290,431.20

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Solution

The fourth proportional to 532,155.36, 734,353.20 and 290,431.20 is: 400,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,155.36 : 734,353.20 = 290,431.20 : x
  2. Step 2: Convert to fraction form
    532,155.36/734,353.20 = 290,431.20/x
  3. Step 3: Cross multiply
    532,155.36x = 734,353.20 × 290,431.20
  4. Step 4: Simplify right side
    532,155.36x = 213,279,081,099.84
  5. Step 5: Solve for x
    x = 213,279,081,099.84/532,155.36
  6. Step 6: Final answer
    x = 400,783.49

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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.