Home / 927,884.88-1,280,438.28-525,479.76

Finding the Fourth Proportional to 927,884.88, 1,280,438.28 and 525,479.76

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Solution

The fourth proportional to 927,884.88, 1,280,438.28 and 525,479.76 is: 725,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,884.88 : 1,280,438.28 = 525,479.76 : x
  2. Step 2: Convert to fraction form
    927,884.88/1,280,438.28 = 525,479.76/x
  3. Step 3: Cross multiply
    927,884.88x = 1,280,438.28 × 525,479.76
  4. Step 4: Simplify right side
    927,884.88x = 672,844,400,069.21
  5. Step 5: Solve for x
    x = 672,844,400,069.21/927,884.88
  6. Step 6: Final answer
    x = 725,137.80

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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.