Home / 775,145.79-1,069,799.54-435,613.77

Finding the Fourth Proportional to 775,145.79, 1,069,799.54 and 435,613.77

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Solution

The fourth proportional to 775,145.79, 1,069,799.54 and 435,613.77 is: 601,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,145.79 : 1,069,799.54 = 435,613.77 : x
  2. Step 2: Convert to fraction form
    775,145.79/1,069,799.54 = 435,613.77/x
  3. Step 3: Cross multiply
    775,145.79x = 1,069,799.54 × 435,613.77
  4. Step 4: Simplify right side
    775,145.79x = 466,019,408,585.60
  5. Step 5: Solve for x
    x = 466,019,408,585.60/775,145.79
  6. Step 6: Final answer
    x = 601,202.27

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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.