Home / 858,028.28-1,286,826.48-352,730.16

Finding the Fourth Proportional to 858,028.28, 1,286,826.48 and 352,730.16

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Solution

The fourth proportional to 858,028.28, 1,286,826.48 and 352,730.16 is: 529,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,028.28 : 1,286,826.48 = 352,730.16 : x
  2. Step 2: Convert to fraction form
    858,028.28/1,286,826.48 = 352,730.16/x
  3. Step 3: Cross multiply
    858,028.28x = 1,286,826.48 × 352,730.16
  4. Step 4: Simplify right side
    858,028.28x = 453,902,510,182.64
  5. Step 5: Solve for x
    x = 453,902,510,182.64/858,028.28
  6. Step 6: Final answer
    x = 529,006.47

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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.