Home / 1,386,668.21-1,913,611.73-774,846.77

Finding the Fourth Proportional to 1,386,668.21, 1,913,611.73 and 774,846.77

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Solution

The fourth proportional to 1,386,668.21, 1,913,611.73 and 774,846.77 is: 1,069,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,668.21 : 1,913,611.73 = 774,846.77 : x
  2. Step 2: Convert to fraction form
    1,386,668.21/1,913,611.73 = 774,846.77/x
  3. Step 3: Cross multiply
    1,386,668.21x = 1,913,611.73 × 774,846.77
  4. Step 4: Simplify right side
    1,386,668.21x = 1,482,755,854,582.32
  5. Step 5: Solve for x
    x = 1,482,755,854,582.32/1,386,668.21
  6. Step 6: Final answer
    x = 1,069,293.90

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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.