Home / 820,151.87-1,131,842.39-457,607.39

Finding the Fourth Proportional to 820,151.87, 1,131,842.39 and 457,607.39

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Solution

The fourth proportional to 820,151.87, 1,131,842.39 and 457,607.39 is: 631,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,151.87 : 1,131,842.39 = 457,607.39 : x
  2. Step 2: Convert to fraction form
    820,151.87/1,131,842.39 = 457,607.39/x
  3. Step 3: Cross multiply
    820,151.87x = 1,131,842.39 × 457,607.39
  4. Step 4: Simplify right side
    820,151.87x = 517,939,434,032.01
  5. Step 5: Solve for x
    x = 517,939,434,032.01/820,151.87
  6. Step 6: Final answer
    x = 631,516.50

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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.