Home / 656,729.56-983,668.74-403,240.60

Finding the Fourth Proportional to 656,729.56, 983,668.74 and 403,240.60

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Solution

The fourth proportional to 656,729.56, 983,668.74 and 403,240.60 is: 603,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,729.56 : 983,668.74 = 403,240.60 : x
  2. Step 2: Convert to fraction form
    656,729.56/983,668.74 = 403,240.60/x
  3. Step 3: Cross multiply
    656,729.56x = 983,668.74 × 403,240.60
  4. Step 4: Simplify right side
    656,729.56x = 396,655,172,918.84
  5. Step 5: Solve for x
    x = 396,655,172,918.84/656,729.56
  6. Step 6: Final answer
    x = 603,985.56

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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.