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Finding the Fourth Proportional to 1,671,843.01, 2,307,849.68 and 1,128,714.52

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Solution

The fourth proportional to 1,671,843.01, 2,307,849.68 and 1,128,714.52 is: 1,558,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,843.01 : 2,307,849.68 = 1,128,714.52 : x
  2. Step 2: Convert to fraction form
    1,671,843.01/2,307,849.68 = 1,128,714.52/x
  3. Step 3: Cross multiply
    1,671,843.01x = 2,307,849.68 × 1,128,714.52
  4. Step 4: Simplify right side
    1,671,843.01x = 2,604,903,426,610.53
  5. Step 5: Solve for x
    x = 2,604,903,426,610.53/1,671,843.01
  6. Step 6: Final answer
    x = 1,558,102.90

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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.