Home / 816,471.64-1,126,769.32-453,901.55

Finding the Fourth Proportional to 816,471.64, 1,126,769.32 and 453,901.55

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Solution

The fourth proportional to 816,471.64, 1,126,769.32 and 453,901.55 is: 626,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,471.64 : 1,126,769.32 = 453,901.55 : x
  2. Step 2: Convert to fraction form
    816,471.64/1,126,769.32 = 453,901.55/x
  3. Step 3: Cross multiply
    816,471.64x = 1,126,769.32 × 453,901.55
  4. Step 4: Simplify right side
    816,471.64x = 511,442,339,999.36
  5. Step 5: Solve for x
    x = 511,442,339,999.36/816,471.64
  6. Step 6: Final answer
    x = 626,405.52

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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.