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Finding the Fourth Proportional to 1,879,714.14, 2,593,935.72 and 1,020,255.90

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Solution

The fourth proportional to 1,879,714.14, 2,593,935.72 and 1,020,255.90 is: 1,407,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879,714.14 : 2,593,935.72 = 1,020,255.90 : x
  2. Step 2: Convert to fraction form
    1,879,714.14/2,593,935.72 = 1,020,255.90/x
  3. Step 3: Cross multiply
    1,879,714.14x = 2,593,935.72 × 1,020,255.90
  4. Step 4: Simplify right side
    1,879,714.14x = 2,646,478,222,550.75
  5. Step 5: Solve for x
    x = 2,646,478,222,550.75/1,879,714.14
  6. Step 6: Final answer
    x = 1,407,915.26

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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.