Home / 693,687.20-1,040,530.80-525,725.60

Finding the Fourth Proportional to 693,687.20, 1,040,530.80 and 525,725.60

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Solution

The fourth proportional to 693,687.20, 1,040,530.80 and 525,725.60 is: 788,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,687.20 : 1,040,530.80 = 525,725.60 : x
  2. Step 2: Convert to fraction form
    693,687.20/1,040,530.80 = 525,725.60/x
  3. Step 3: Cross multiply
    693,687.20x = 1,040,530.80 × 525,725.60
  4. Step 4: Simplify right side
    693,687.20x = 547,033,679,148.48
  5. Step 5: Solve for x
    x = 547,033,679,148.48/693,687.20
  6. Step 6: Final answer
    x = 788,588.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.