Home / 1,385,528.32-1,912,066.56-841,539.36

Finding the Fourth Proportional to 1,385,528.32, 1,912,066.56 and 841,539.36

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Solution

The fourth proportional to 1,385,528.32, 1,912,066.56 and 841,539.36 is: 1,161,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,528.32 : 1,912,066.56 = 841,539.36 : x
  2. Step 2: Convert to fraction form
    1,385,528.32/1,912,066.56 = 841,539.36/x
  3. Step 3: Cross multiply
    1,385,528.32x = 1,912,066.56 × 841,539.36
  4. Step 4: Simplify right side
    1,385,528.32x = 1,609,079,269,179.80
  5. Step 5: Solve for x
    x = 1,609,079,269,179.80/1,385,528.32
  6. Step 6: Final answer
    x = 1,161,347.08

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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.