Home / 1,210,641.50-1,670,761.10-666,777.17

Finding the Fourth Proportional to 1,210,641.50, 1,670,761.10 and 666,777.17

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Solution

The fourth proportional to 1,210,641.50, 1,670,761.10 and 666,777.17 is: 920,194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,641.50 : 1,670,761.10 = 666,777.17 : x
  2. Step 2: Convert to fraction form
    1,210,641.50/1,670,761.10 = 666,777.17/x
  3. Step 3: Cross multiply
    1,210,641.50x = 1,670,761.10 × 666,777.17
  4. Step 4: Simplify right side
    1,210,641.50x = 1,114,025,363,847.93
  5. Step 5: Solve for x
    x = 1,114,025,363,847.93/1,210,641.50
  6. Step 6: Final answer
    x = 920,194.26

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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.