Home / 770,488.11-1,063,215.86-430,890.75

Finding the Fourth Proportional to 770,488.11, 1,063,215.86 and 430,890.75

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Solution

The fourth proportional to 770,488.11, 1,063,215.86 and 430,890.75 is: 594,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,488.11 : 1,063,215.86 = 430,890.75 : x
  2. Step 2: Convert to fraction form
    770,488.11/1,063,215.86 = 430,890.75/x
  3. Step 3: Cross multiply
    770,488.11x = 1,063,215.86 × 430,890.75
  4. Step 4: Simplify right side
    770,488.11x = 458,129,877,172.84
  5. Step 5: Solve for x
    x = 458,129,877,172.84/770,488.11
  6. Step 6: Final answer
    x = 594,596.95

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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.