Home / 771,716.80-1,157,186.40-456,270.40

Finding the Fourth Proportional to 771,716.80, 1,157,186.40 and 456,270.40

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Solution

The fourth proportional to 771,716.80, 1,157,186.40 and 456,270.40 is: 684,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,716.80 : 1,157,186.40 = 456,270.40 : x
  2. Step 2: Convert to fraction form
    771,716.80/1,157,186.40 = 456,270.40/x
  3. Step 3: Cross multiply
    771,716.80x = 1,157,186.40 × 456,270.40
  4. Step 4: Simplify right side
    771,716.80x = 527,989,901,602.56
  5. Step 5: Solve for x
    x = 527,989,901,602.56/771,716.80
  6. Step 6: Final answer
    x = 684,175.73

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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.