Home / 526,928.37-790,391.34-407,159.45

Finding the Fourth Proportional to 526,928.37, 790,391.34 and 407,159.45

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Solution

The fourth proportional to 526,928.37, 790,391.34 and 407,159.45 is: 610,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,928.37 : 790,391.34 = 407,159.45 : x
  2. Step 2: Convert to fraction form
    526,928.37/790,391.34 = 407,159.45/x
  3. Step 3: Cross multiply
    526,928.37x = 790,391.34 × 407,159.45
  4. Step 4: Simplify right side
    526,928.37x = 321,815,299,327.21
  5. Step 5: Solve for x
    x = 321,815,299,327.21/526,928.37
  6. Step 6: Final answer
    x = 610,738.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.