Home / 869,989.28-1,199,314.32-614,890.40

Finding the Fourth Proportional to 869,989.28, 1,199,314.32 and 614,890.40

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Solution

The fourth proportional to 869,989.28, 1,199,314.32 and 614,890.40 is: 847,650.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,989.28 : 1,199,314.32 = 614,890.40 : x
  2. Step 2: Convert to fraction form
    869,989.28/1,199,314.32 = 614,890.40/x
  3. Step 3: Cross multiply
    869,989.28x = 1,199,314.32 × 614,890.40
  4. Step 4: Simplify right side
    869,989.28x = 737,446,861,950.53
  5. Step 5: Solve for x
    x = 737,446,861,950.53/869,989.28
  6. Step 6: Final answer
    x = 847,650.52

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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.