Home / 693,775.20-1,040,662.80-525,813.60

Finding the Fourth Proportional to 693,775.20, 1,040,662.80 and 525,813.60

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Solution

The fourth proportional to 693,775.20, 1,040,662.80 and 525,813.60 is: 788,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,775.20 : 1,040,662.80 = 525,813.60 : x
  2. Step 2: Convert to fraction form
    693,775.20/1,040,662.80 = 525,813.60/x
  3. Step 3: Cross multiply
    693,775.20x = 1,040,662.80 × 525,813.60
  4. Step 4: Simplify right side
    693,775.20x = 547,194,653,254.08
  5. Step 5: Solve for x
    x = 547,194,653,254.08/693,775.20
  6. Step 6: Final answer
    x = 788,720.40

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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.