Home / 628,784.06-947,412.68-518,924.97

Finding the Fourth Proportional to 628,784.06, 947,412.68 and 518,924.97

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Solution

The fourth proportional to 628,784.06, 947,412.68 and 518,924.97 is: 781,883.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,784.06 : 947,412.68 = 518,924.97 : x
  2. Step 2: Convert to fraction form
    628,784.06/947,412.68 = 518,924.97/x
  3. Step 3: Cross multiply
    628,784.06x = 947,412.68 × 518,924.97
  4. Step 4: Simplify right side
    628,784.06x = 491,636,093,952.00
  5. Step 5: Solve for x
    x = 491,636,093,952.00/628,784.06
  6. Step 6: Final answer
    x = 781,883.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.