Home / 1,200,945.85-1,657,326.01-657,129.15

Finding the Fourth Proportional to 1,200,945.85, 1,657,326.01 and 657,129.15

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Solution

The fourth proportional to 1,200,945.85, 1,657,326.01 and 657,129.15 is: 906,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,945.85 : 1,657,326.01 = 657,129.15 : x
  2. Step 2: Convert to fraction form
    1,200,945.85/1,657,326.01 = 657,129.15/x
  3. Step 3: Cross multiply
    1,200,945.85x = 1,657,326.01 × 657,129.15
  4. Step 4: Simplify right side
    1,200,945.85x = 1,089,077,232,224.19
  5. Step 5: Solve for x
    x = 1,089,077,232,224.19/1,200,945.85
  6. Step 6: Final answer
    x = 906,849.57

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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.