Home / 957,200.10-1,320,919.04-521,621.24

Finding the Fourth Proportional to 957,200.10, 1,320,919.04 and 521,621.24

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Solution

The fourth proportional to 957,200.10, 1,320,919.04 and 521,621.24 is: 719,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,200.10 : 1,320,919.04 = 521,621.24 : x
  2. Step 2: Convert to fraction form
    957,200.10/1,320,919.04 = 521,621.24/x
  3. Step 3: Cross multiply
    957,200.10x = 1,320,919.04 × 521,621.24
  4. Step 4: Simplify right side
    957,200.10x = 689,019,418,371.71
  5. Step 5: Solve for x
    x = 689,019,418,371.71/957,200.10
  6. Step 6: Final answer
    x = 719,827.98

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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.