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Finding the Fourth Proportional to 970,536.96, 1,339,457.28 and 568,128

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Solution

The fourth proportional to 970,536.96, 1,339,457.28 and 568,128 is: 784,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,536.96 : 1,339,457.28 = 568,128 : x
  2. Step 2: Convert to fraction form
    970,536.96/1,339,457.28 = 568,128/x
  3. Step 3: Cross multiply
    970,536.96x = 1,339,457.28 × 568,128
  4. Step 4: Simplify right side
    970,536.96x = 760,983,185,571.84
  5. Step 5: Solve for x
    x = 760,983,185,571.84/970,536.96
  6. Step 6: Final answer
    x = 784,084.70

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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.