Home / 837,775.81-1,156,142.45-455,802.89

Finding the Fourth Proportional to 837,775.81, 1,156,142.45 and 455,802.89

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Solution

The fourth proportional to 837,775.81, 1,156,142.45 and 455,802.89 is: 629,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,775.81 : 1,156,142.45 = 455,802.89 : x
  2. Step 2: Convert to fraction form
    837,775.81/1,156,142.45 = 455,802.89/x
  3. Step 3: Cross multiply
    837,775.81x = 1,156,142.45 × 455,802.89
  4. Step 4: Simplify right side
    837,775.81x = 526,973,067,682.67
  5. Step 5: Solve for x
    x = 526,973,067,682.67/837,775.81
  6. Step 6: Final answer
    x = 629,014.43

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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.