Home / 1,229,107.53-1,697,239.40-771,009.54

Finding the Fourth Proportional to 1,229,107.53, 1,697,239.40 and 771,009.54

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Solution

The fourth proportional to 1,229,107.53, 1,697,239.40 and 771,009.54 is: 1,064,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,107.53 : 1,697,239.40 = 771,009.54 : x
  2. Step 2: Convert to fraction form
    1,229,107.53/1,697,239.40 = 771,009.54/x
  3. Step 3: Cross multiply
    1,229,107.53x = 1,697,239.40 × 771,009.54
  4. Step 4: Simplify right side
    1,229,107.53x = 1,308,587,765,208.83
  5. Step 5: Solve for x
    x = 1,308,587,765,208.83/1,229,107.53
  6. Step 6: Final answer
    x = 1,064,665.00

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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.