Home / 825,681.76-1,139,682.72-539,246.32

Finding the Fourth Proportional to 825,681.76, 1,139,682.72 and 539,246.32

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Solution

The fourth proportional to 825,681.76, 1,139,682.72 and 539,246.32 is: 744,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,681.76 : 1,139,682.72 = 539,246.32 : x
  2. Step 2: Convert to fraction form
    825,681.76/1,139,682.72 = 539,246.32/x
  3. Step 3: Cross multiply
    825,681.76x = 1,139,682.72 × 539,246.32
  4. Step 4: Simplify right side
    825,681.76x = 614,569,712,727.59
  5. Step 5: Solve for x
    x = 614,569,712,727.59/825,681.76
  6. Step 6: Final answer
    x = 744,317.90

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1.5x scale

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.