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Finding the Fourth Proportional to 1,404,799.92, 1,938,628.78 and 760,219.94

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Solution

The fourth proportional to 1,404,799.92, 1,938,628.78 and 760,219.94 is: 1,049,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,799.92 : 1,938,628.78 = 760,219.94 : x
  2. Step 2: Convert to fraction form
    1,404,799.92/1,938,628.78 = 760,219.94/x
  3. Step 3: Cross multiply
    1,404,799.92x = 1,938,628.78 × 760,219.94
  4. Step 4: Simplify right side
    1,404,799.92x = 1,473,784,254,813.87
  5. Step 5: Solve for x
    x = 1,473,784,254,813.87/1,404,799.92
  6. Step 6: Final answer
    x = 1,049,106.16

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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.