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Finding the Fourth Proportional to 1,917,827.92, 2,875,993.98 and 719,097.04

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Solution

The fourth proportional to 1,917,827.92, 2,875,993.98 and 719,097.04 is: 1,078,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,827.92 : 2,875,993.98 = 719,097.04 : x
  2. Step 2: Convert to fraction form
    1,917,827.92/2,875,993.98 = 719,097.04/x
  3. Step 3: Cross multiply
    1,917,827.92x = 2,875,993.98 × 719,097.04
  4. Step 4: Simplify right side
    1,917,827.92x = 2,068,118,758,075.82
  5. Step 5: Solve for x
    x = 2,068,118,758,075.82/1,917,827.92
  6. Step 6: Final answer
    x = 1,078,365.13

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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.