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Finding the Fourth Proportional to 1,294,733.15, 1,786,838.10 and 714,069.87

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Solution

The fourth proportional to 1,294,733.15, 1,786,838.10 and 714,069.87 is: 985,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,733.15 : 1,786,838.10 = 714,069.87 : x
  2. Step 2: Convert to fraction form
    1,294,733.15/1,786,838.10 = 714,069.87/x
  3. Step 3: Cross multiply
    1,294,733.15x = 1,786,838.10 × 714,069.87
  4. Step 4: Simplify right side
    1,294,733.15x = 1,275,927,237,273.51
  5. Step 5: Solve for x
    x = 1,275,927,237,273.51/1,294,733.15
  6. Step 6: Final answer
    x = 985,475.07

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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.