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Finding the Fourth Proportional to 1,354,294.81, 1,868,876.74 and 734,086.67

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Solution

The fourth proportional to 1,354,294.81, 1,868,876.74 and 734,086.67 is: 1,013,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,294.81 : 1,868,876.74 = 734,086.67 : x
  2. Step 2: Convert to fraction form
    1,354,294.81/1,868,876.74 = 734,086.67/x
  3. Step 3: Cross multiply
    1,354,294.81x = 1,868,876.74 × 734,086.67
  4. Step 4: Simplify right side
    1,354,294.81x = 1,371,917,509,016.66
  5. Step 5: Solve for x
    x = 1,371,917,509,016.66/1,354,294.81
  6. Step 6: Final answer
    x = 1,013,012.45

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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.