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Finding the Fourth Proportional to 3,813,784.64, 5,720,669.40 and 973,898.72

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Solution

The fourth proportional to 3,813,784.64, 5,720,669.40 and 973,898.72 is: 1,460,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813,784.64 : 5,720,669.40 = 973,898.72 : x
  2. Step 2: Convert to fraction form
    3,813,784.64/5,720,669.40 = 973,898.72/x
  3. Step 3: Cross multiply
    3,813,784.64x = 5,720,669.40 × 973,898.72
  4. Step 4: Simplify right side
    3,813,784.64x = 5,571,352,606,203.17
  5. Step 5: Solve for x
    x = 5,571,352,606,203.17/3,813,784.64
  6. Step 6: Final answer
    x = 1,460,846.15

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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.