Home / 1,298,208.67-1,791,533.42-709,519.95

Finding the Fourth Proportional to 1,298,208.67, 1,791,533.42 and 709,519.95

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Solution

The fourth proportional to 1,298,208.67, 1,791,533.42 and 709,519.95 is: 979,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,208.67 : 1,791,533.42 = 709,519.95 : x
  2. Step 2: Convert to fraction form
    1,298,208.67/1,791,533.42 = 709,519.95/x
  3. Step 3: Cross multiply
    1,298,208.67x = 1,791,533.42 × 709,519.95
  4. Step 4: Simplify right side
    1,298,208.67x = 1,271,128,705,854.20
  5. Step 5: Solve for x
    x = 1,271,128,705,854.20/1,298,208.67
  6. Step 6: Final answer
    x = 979,140.52

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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.