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Finding the Fourth Proportional to 1,933,784.72, 2,899,681.08 and 867,913.04

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Solution

The fourth proportional to 1,933,784.72, 2,899,681.08 and 867,913.04 is: 1,301,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933,784.72 : 2,899,681.08 = 867,913.04 : x
  2. Step 2: Convert to fraction form
    1,933,784.72/2,899,681.08 = 867,913.04/x
  3. Step 3: Cross multiply
    1,933,784.72x = 2,899,681.08 × 867,913.04
  4. Step 4: Simplify right side
    1,933,784.72x = 2,516,671,021,173.28
  5. Step 5: Solve for x
    x = 2,516,671,021,173.28/1,933,784.72
  6. Step 6: Final answer
    x = 1,301,422.54

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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.