Home / 1,182,386.66-1,631,600.70-666,117.77

Finding the Fourth Proportional to 1,182,386.66, 1,631,600.70 and 666,117.77

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Solution

The fourth proportional to 1,182,386.66, 1,631,600.70 and 666,117.77 is: 919,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,386.66 : 1,631,600.70 = 666,117.77 : x
  2. Step 2: Convert to fraction form
    1,182,386.66/1,631,600.70 = 666,117.77/x
  3. Step 3: Cross multiply
    1,182,386.66x = 1,631,600.70 × 666,117.77
  4. Step 4: Simplify right side
    1,182,386.66x = 1,086,838,219,814.44
  5. Step 5: Solve for x
    x = 1,086,838,219,814.44/1,182,386.66
  6. Step 6: Final answer
    x = 919,190.19

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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.