Home / 864,350.40-1,295,359.20-614,740.80

Finding the Fourth Proportional to 864,350.40, 1,295,359.20 and 614,740.80

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Solution

The fourth proportional to 864,350.40, 1,295,359.20 and 614,740.80 is: 921,281.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,350.40 : 1,295,359.20 = 614,740.80 : x
  2. Step 2: Convert to fraction form
    864,350.40/1,295,359.20 = 614,740.80/x
  3. Step 3: Cross multiply
    864,350.40x = 1,295,359.20 × 614,740.80
  4. Step 4: Simplify right side
    864,350.40x = 796,310,150,895.36
  5. Step 5: Solve for x
    x = 796,310,150,895.36/864,350.40
  6. Step 6: Final answer
    x = 921,281.64

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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.