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Finding the Fourth Proportional to 713,273.60, 1,069,320.72 and 556,198.40

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Solution

The fourth proportional to 713,273.60, 1,069,320.72 and 556,198.40 is: 833,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,273.60 : 1,069,320.72 = 556,198.40 : x
  2. Step 2: Convert to fraction form
    713,273.60/1,069,320.72 = 556,198.40/x
  3. Step 3: Cross multiply
    713,273.60x = 1,069,320.72 × 556,198.40
  4. Step 4: Simplify right side
    713,273.60x = 594,754,473,550.85
  5. Step 5: Solve for x
    x = 594,754,473,550.85/713,273.60
  6. Step 6: Final answer
    x = 833,837.78

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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.