Home / 669,048.54-922,867.02-396,923.77

Finding the Fourth Proportional to 669,048.54, 922,867.02 and 396,923.77

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Solution

The fourth proportional to 669,048.54, 922,867.02 and 396,923.77 is: 547,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,048.54 : 922,867.02 = 396,923.77 : x
  2. Step 2: Convert to fraction form
    669,048.54/922,867.02 = 396,923.77/x
  3. Step 3: Cross multiply
    669,048.54x = 922,867.02 × 396,923.77
  4. Step 4: Simplify right side
    669,048.54x = 366,307,857,940.65
  5. Step 5: Solve for x
    x = 366,307,857,940.65/669,048.54
  6. Step 6: Final answer
    x = 547,505.66

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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.