Home / 1,386,750.58-1,913,719.77-774,926.39

Finding the Fourth Proportional to 1,386,750.58, 1,913,719.77 and 774,926.39

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Solution

The fourth proportional to 1,386,750.58, 1,913,719.77 and 774,926.39 is: 1,069,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,750.58 : 1,913,719.77 = 774,926.39 : x
  2. Step 2: Convert to fraction form
    1,386,750.58/1,913,719.77 = 774,926.39/x
  3. Step 3: Cross multiply
    1,386,750.58x = 1,913,719.77 × 774,926.39
  4. Step 4: Simplify right side
    1,386,750.58x = 1,482,991,957,622.03
  5. Step 5: Solve for x
    x = 1,482,991,957,622.03/1,386,750.58
  6. Step 6: Final answer
    x = 1,069,400.64

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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.