Home / 1,243,127.61-1,715,030.28-699,138.63

Finding the Fourth Proportional to 1,243,127.61, 1,715,030.28 and 699,138.63

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Solution

The fourth proportional to 1,243,127.61, 1,715,030.28 and 699,138.63 is: 964,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,127.61 : 1,715,030.28 = 699,138.63 : x
  2. Step 2: Convert to fraction form
    1,243,127.61/1,715,030.28 = 699,138.63/x
  3. Step 3: Cross multiply
    1,243,127.61x = 1,715,030.28 × 699,138.63
  4. Step 4: Simplify right side
    1,243,127.61x = 1,199,043,920,367.72
  5. Step 5: Solve for x
    x = 1,199,043,920,367.72/1,243,127.61
  6. Step 6: Final answer
    x = 964,538.08

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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.