Home / 696,655.84-961,384.77-406,211.36

Finding the Fourth Proportional to 696,655.84, 961,384.77 and 406,211.36

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Solution

The fourth proportional to 696,655.84, 961,384.77 and 406,211.36 is: 560,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,655.84 : 961,384.77 = 406,211.36 : x
  2. Step 2: Convert to fraction form
    696,655.84/961,384.77 = 406,211.36/x
  3. Step 3: Cross multiply
    696,655.84x = 961,384.77 × 406,211.36
  4. Step 4: Simplify right side
    696,655.84x = 390,525,414,904.99
  5. Step 5: Solve for x
    x = 390,525,414,904.99/696,655.84
  6. Step 6: Final answer
    x = 560,571.51

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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.