Home / 1,210,811.88-1,670,858.64-666,935.96

Finding the Fourth Proportional to 1,210,811.88, 1,670,858.64 and 666,935.96

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Solution

The fourth proportional to 1,210,811.88, 1,670,858.64 and 666,935.96 is: 920,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,811.88 : 1,670,858.64 = 666,935.96 : x
  2. Step 2: Convert to fraction form
    1,210,811.88/1,670,858.64 = 666,935.96/x
  3. Step 3: Cross multiply
    1,210,811.88x = 1,670,858.64 × 666,935.96
  4. Step 4: Simplify right side
    1,210,811.88x = 1,114,355,711,092.69
  5. Step 5: Solve for x
    x = 1,114,355,711,092.69/1,210,811.88
  6. Step 6: Final answer
    x = 920,337.61

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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.