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Finding the Fourth Proportional to 1,173,253, 1,619,108.58 and 636,709

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Solution

The fourth proportional to 1,173,253, 1,619,108.58 and 636,709 is: 878,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,253 : 1,619,108.58 = 636,709 : x
  2. Step 2: Convert to fraction form
    1,173,253/1,619,108.58 = 636,709/x
  3. Step 3: Cross multiply
    1,173,253x = 1,619,108.58 × 636,709
  4. Step 4: Simplify right side
    1,173,253x = 1,030,901,004,863.22
  5. Step 5: Solve for x
    x = 1,030,901,004,863.22/1,173,253
  6. Step 6: Final answer
    x = 878,668.97

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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.