Home / 661,356.49-992,440.83-525,617.59

Finding the Fourth Proportional to 661,356.49, 992,440.83 and 525,617.59

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Solution

The fourth proportional to 661,356.49, 992,440.83 and 525,617.59 is: 788,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,356.49 : 992,440.83 = 525,617.59 : x
  2. Step 2: Convert to fraction form
    661,356.49/992,440.83 = 525,617.59/x
  3. Step 3: Cross multiply
    661,356.49x = 992,440.83 × 525,617.59
  4. Step 4: Simplify right side
    661,356.49x = 521,644,357,282.20
  5. Step 5: Solve for x
    x = 521,644,357,282.20/661,356.49
  6. Step 6: Final answer
    x = 788,749.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.