Home / 837,429.21-1,155,657.78-455,458.77

Finding the Fourth Proportional to 837,429.21, 1,155,657.78 and 455,458.77

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Solution

The fourth proportional to 837,429.21, 1,155,657.78 and 455,458.77 is: 628,536.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,429.21 : 1,155,657.78 = 455,458.77 : x
  2. Step 2: Convert to fraction form
    837,429.21/1,155,657.78 = 455,458.77/x
  3. Step 3: Cross multiply
    837,429.21x = 1,155,657.78 × 455,458.77
  4. Step 4: Simplify right side
    837,429.21x = 526,354,471,019.73
  5. Step 5: Solve for x
    x = 526,354,471,019.73/837,429.21
  6. Step 6: Final answer
    x = 628,536.08

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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.