Home / 1,170,911.79-1,615,837.21-661,603.23

Finding the Fourth Proportional to 1,170,911.79, 1,615,837.21 and 661,603.23

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Solution

The fourth proportional to 1,170,911.79, 1,615,837.21 and 661,603.23 is: 913,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,911.79 : 1,615,837.21 = 661,603.23 : x
  2. Step 2: Convert to fraction form
    1,170,911.79/1,615,837.21 = 661,603.23/x
  3. Step 3: Cross multiply
    1,170,911.79x = 1,615,837.21 × 661,603.23
  4. Step 4: Simplify right side
    1,170,911.79x = 1,069,043,115,636.18
  5. Step 5: Solve for x
    x = 1,069,043,115,636.18/1,170,911.79
  6. Step 6: Final answer
    x = 913,000.56

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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.