Home / 855,186.23-1,280,223.72-517,204.50

Finding the Fourth Proportional to 855,186.23, 1,280,223.72 and 517,204.50

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Solution

The fourth proportional to 855,186.23, 1,280,223.72 and 517,204.50 is: 774,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,186.23 : 1,280,223.72 = 517,204.50 : x
  2. Step 2: Convert to fraction form
    855,186.23/1,280,223.72 = 517,204.50/x
  3. Step 3: Cross multiply
    855,186.23x = 1,280,223.72 × 517,204.50
  4. Step 4: Simplify right side
    855,186.23x = 662,137,468,990.74
  5. Step 5: Solve for x
    x = 662,137,468,990.74/855,186.23
  6. Step 6: Final answer
    x = 774,261.15

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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.