Home / 771,801.85-1,157,886.71-266,367.19

Finding the Fourth Proportional to 771,801.85, 1,157,886.71 and 266,367.19

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Solution

The fourth proportional to 771,801.85, 1,157,886.71 and 266,367.19 is: 399,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,801.85 : 1,157,886.71 = 266,367.19 : x
  2. Step 2: Convert to fraction form
    771,801.85/1,157,886.71 = 266,367.19/x
  3. Step 3: Cross multiply
    771,801.85x = 1,157,886.71 × 266,367.19
  4. Step 4: Simplify right side
    771,801.85x = 308,423,025,054.49
  5. Step 5: Solve for x
    x = 308,423,025,054.49/771,801.85
  6. Step 6: Final answer
    x = 399,614.26

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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.