Home / 1,210,592.98-1,670,693.81-666,728.61

Finding the Fourth Proportional to 1,210,592.98, 1,670,693.81 and 666,728.61

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Solution

The fourth proportional to 1,210,592.98, 1,670,693.81 and 666,728.61 is: 920,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,592.98 : 1,670,693.81 = 666,728.61 : x
  2. Step 2: Convert to fraction form
    1,210,592.98/1,670,693.81 = 666,728.61/x
  3. Step 3: Cross multiply
    1,210,592.98x = 1,670,693.81 × 666,728.61
  4. Step 4: Simplify right side
    1,210,592.98x = 1,113,899,361,676.90
  5. Step 5: Solve for x
    x = 1,113,899,361,676.90/1,210,592.98
  6. Step 6: Final answer
    x = 920,127.06

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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.