Home / 935,074.14-1,290,408.22-505,353.26

Finding the Fourth Proportional to 935,074.14, 1,290,408.22 and 505,353.26

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Solution

The fourth proportional to 935,074.14, 1,290,408.22 and 505,353.26 is: 697,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,074.14 : 1,290,408.22 = 505,353.26 : x
  2. Step 2: Convert to fraction form
    935,074.14/1,290,408.22 = 505,353.26/x
  3. Step 3: Cross multiply
    935,074.14x = 1,290,408.22 × 505,353.26
  4. Step 4: Simplify right side
    935,074.14x = 652,112,000,707.80
  5. Step 5: Solve for x
    x = 652,112,000,707.80/935,074.14
  6. Step 6: Final answer
    x = 697,390.69

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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.