Home / 1,312,603.76-1,811,394.24-708,991.76

Finding the Fourth Proportional to 1,312,603.76, 1,811,394.24 and 708,991.76

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Solution

The fourth proportional to 1,312,603.76, 1,811,394.24 and 708,991.76 is: 978,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,603.76 : 1,811,394.24 = 708,991.76 : x
  2. Step 2: Convert to fraction form
    1,312,603.76/1,811,394.24 = 708,991.76/x
  3. Step 3: Cross multiply
    1,312,603.76x = 1,811,394.24 × 708,991.76
  4. Step 4: Simplify right side
    1,312,603.76x = 1,284,263,590,271.46
  5. Step 5: Solve for x
    x = 1,284,263,590,271.46/1,312,603.76
  6. Step 6: Final answer
    x = 978,409.20

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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.