Home / 777,219.72-1,072,565.64-450,596.40

Finding the Fourth Proportional to 777,219.72, 1,072,565.64 and 450,596.40

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Solution

The fourth proportional to 777,219.72, 1,072,565.64 and 450,596.40 is: 621,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,219.72 : 1,072,565.64 = 450,596.40 : x
  2. Step 2: Convert to fraction form
    777,219.72/1,072,565.64 = 450,596.40/x
  3. Step 3: Cross multiply
    777,219.72x = 1,072,565.64 × 450,596.40
  4. Step 4: Simplify right side
    777,219.72x = 483,294,216,147.70
  5. Step 5: Solve for x
    x = 483,294,216,147.70/777,219.72
  6. Step 6: Final answer
    x = 621,824.44

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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.