Home / 777,931.20-1,166,896.80-646,711.20

Finding the Fourth Proportional to 777,931.20, 1,166,896.80 and 646,711.20

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Solution

The fourth proportional to 777,931.20, 1,166,896.80 and 646,711.20 is: 970,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,931.20 : 1,166,896.80 = 646,711.20 : x
  2. Step 2: Convert to fraction form
    777,931.20/1,166,896.80 = 646,711.20/x
  3. Step 3: Cross multiply
    777,931.20x = 1,166,896.80 × 646,711.20
  4. Step 4: Simplify right side
    777,931.20x = 754,645,229,804.16
  5. Step 5: Solve for x
    x = 754,645,229,804.16/777,931.20
  6. Step 6: Final answer
    x = 970,066.80

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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.