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Finding the Fourth Proportional to 1,358,657.60, 1,874,922.26 and 746,797.28

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Solution

The fourth proportional to 1,358,657.60, 1,874,922.26 and 746,797.28 is: 1,030,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,657.60 : 1,874,922.26 = 746,797.28 : x
  2. Step 2: Convert to fraction form
    1,358,657.60/1,874,922.26 = 746,797.28/x
  3. Step 3: Cross multiply
    1,358,657.60x = 1,874,922.26 × 746,797.28
  4. Step 4: Simplify right side
    1,358,657.60x = 1,400,186,843,979.45
  5. Step 5: Solve for x
    x = 1,400,186,843,979.45/1,358,657.60
  6. Step 6: Final answer
    x = 1,030,566.38

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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.