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Finding the Fourth Proportional to 1,330,175, 1,835,641.70 and 726,563

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Solution

The fourth proportional to 1,330,175, 1,835,641.70 and 726,563 is: 1,002,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,175 : 1,835,641.70 = 726,563 : x
  2. Step 2: Convert to fraction form
    1,330,175/1,835,641.70 = 726,563/x
  3. Step 3: Cross multiply
    1,330,175x = 1,835,641.70 × 726,563
  4. Step 4: Simplify right side
    1,330,175x = 1,333,709,340,477.10
  5. Step 5: Solve for x
    x = 1,333,709,340,477.10/1,330,175
  6. Step 6: Final answer
    x = 1,002,657.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.