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Finding the Fourth Proportional to 1,153,153, 1,729,288.86 and 553,943.40

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Solution

The fourth proportional to 1,153,153, 1,729,288.86 and 553,943.40 is: 830,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,153 : 1,729,288.86 = 553,943.40 : x
  2. Step 2: Convert to fraction form
    1,153,153/1,729,288.86 = 553,943.40/x
  3. Step 3: Cross multiply
    1,153,153x = 1,729,288.86 × 553,943.40
  4. Step 4: Simplify right side
    1,153,153x = 957,928,150,690.52
  5. Step 5: Solve for x
    x = 957,928,150,690.52/1,153,153
  6. Step 6: Final answer
    x = 830,703.43

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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.