Home / 777,557.60-1,166,336.40-328,785.20

Finding the Fourth Proportional to 777,557.60, 1,166,336.40 and 328,785.20

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Solution

The fourth proportional to 777,557.60, 1,166,336.40 and 328,785.20 is: 493,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,557.60 : 1,166,336.40 = 328,785.20 : x
  2. Step 2: Convert to fraction form
    777,557.60/1,166,336.40 = 328,785.20/x
  3. Step 3: Cross multiply
    777,557.60x = 1,166,336.40 × 328,785.20
  4. Step 4: Simplify right side
    777,557.60x = 383,474,146,541.28
  5. Step 5: Solve for x
    x = 383,474,146,541.28/777,557.60
  6. Step 6: Final answer
    x = 493,177.80

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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.