Home / 708,458.36-977,643.12-386,161.36

Finding the Fourth Proportional to 708,458.36, 977,643.12 and 386,161.36

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Solution

The fourth proportional to 708,458.36, 977,643.12 and 386,161.36 is: 532,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,458.36 : 977,643.12 = 386,161.36 : x
  2. Step 2: Convert to fraction form
    708,458.36/977,643.12 = 386,161.36/x
  3. Step 3: Cross multiply
    708,458.36x = 977,643.12 × 386,161.36
  4. Step 4: Simplify right side
    708,458.36x = 377,527,996,813.84
  5. Step 5: Solve for x
    x = 377,527,996,813.84/708,458.36
  6. Step 6: Final answer
    x = 532,886.64

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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.