Home / 862,927.45-1,190,788.64-495,319.66

Finding the Fourth Proportional to 862,927.45, 1,190,788.64 and 495,319.66

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Solution

The fourth proportional to 862,927.45, 1,190,788.64 and 495,319.66 is: 683,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,927.45 : 1,190,788.64 = 495,319.66 : x
  2. Step 2: Convert to fraction form
    862,927.45/1,190,788.64 = 495,319.66/x
  3. Step 3: Cross multiply
    862,927.45x = 1,190,788.64 × 495,319.66
  4. Step 4: Simplify right side
    862,927.45x = 589,821,024,296.66
  5. Step 5: Solve for x
    x = 589,821,024,296.66/862,927.45
  6. Step 6: Final answer
    x = 683,511.72

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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.