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Finding the Fourth Proportional to 1,914,865.03, 2,872,370.45 and 716,661.19

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Solution

The fourth proportional to 1,914,865.03, 2,872,370.45 and 716,661.19 is: 1,075,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,865.03 : 2,872,370.45 = 716,661.19 : x
  2. Step 2: Convert to fraction form
    1,914,865.03/2,872,370.45 = 716,661.19/x
  3. Step 3: Cross multiply
    1,914,865.03x = 2,872,370.45 × 716,661.19
  4. Step 4: Simplify right side
    1,914,865.03x = 2,058,516,424,817.84
  5. Step 5: Solve for x
    x = 2,058,516,424,817.84/1,914,865.03
  6. Step 6: Final answer
    x = 1,075,019.07

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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.