Home / 836,189.55-1,153,922.21-487,307.72

Finding the Fourth Proportional to 836,189.55, 1,153,922.21 and 487,307.72

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Solution

The fourth proportional to 836,189.55, 1,153,922.21 and 487,307.72 is: 672,473.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,189.55 : 1,153,922.21 = 487,307.72 : x
  2. Step 2: Convert to fraction form
    836,189.55/1,153,922.21 = 487,307.72/x
  3. Step 3: Cross multiply
    836,189.55x = 1,153,922.21 × 487,307.72
  4. Step 4: Simplify right side
    836,189.55x = 562,315,193,006.31
  5. Step 5: Solve for x
    x = 562,315,193,006.31/836,189.55
  6. Step 6: Final answer
    x = 672,473.36

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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.