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Finding the Fourth Proportional to 1,295,975.19, 1,942,386.10 and 917,005.00

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Solution

The fourth proportional to 1,295,975.19, 1,942,386.10 and 917,005.00 is: 1,374,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,975.19 : 1,942,386.10 = 917,005.00 : x
  2. Step 2: Convert to fraction form
    1,295,975.19/1,942,386.10 = 917,005.00/x
  3. Step 3: Cross multiply
    1,295,975.19x = 1,942,386.10 × 917,005.00
  4. Step 4: Simplify right side
    1,295,975.19x = 1,781,177,764,703.07
  5. Step 5: Solve for x
    x = 1,781,177,764,703.07/1,295,975.19
  6. Step 6: Final answer
    x = 1,374,391.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.