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Finding the Fourth Proportional to 1,126,312, 1,554,310.56 and 673,603

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Solution

The fourth proportional to 1,126,312, 1,554,310.56 and 673,603 is: 929,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,312 : 1,554,310.56 = 673,603 : x
  2. Step 2: Convert to fraction form
    1,126,312/1,554,310.56 = 673,603/x
  3. Step 3: Cross multiply
    1,126,312x = 1,554,310.56 × 673,603
  4. Step 4: Simplify right side
    1,126,312x = 1,046,988,256,147.68
  5. Step 5: Solve for x
    x = 1,046,988,256,147.68/1,126,312
  6. Step 6: Final answer
    x = 929,572.14

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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.