Home / 451,230.60-622,981.35-290,365.23

Finding the Fourth Proportional to 451,230.60, 622,981.35 and 290,365.23

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Solution

The fourth proportional to 451,230.60, 622,981.35 and 290,365.23 is: 400,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,230.60 : 622,981.35 = 290,365.23 : x
  2. Step 2: Convert to fraction form
    451,230.60/622,981.35 = 290,365.23/x
  3. Step 3: Cross multiply
    451,230.60x = 622,981.35 × 290,365.23
  4. Step 4: Simplify right side
    451,230.60x = 180,892,122,978.46
  5. Step 5: Solve for x
    x = 180,892,122,978.46/451,230.60
  6. Step 6: Final answer
    x = 400,886.21

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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.