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Finding the Fourth Proportional to 1,248,669.74, 1,723,242.28 and 704,897.66

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Solution

The fourth proportional to 1,248,669.74, 1,723,242.28 and 704,897.66 is: 972,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,669.74 : 1,723,242.28 = 704,897.66 : x
  2. Step 2: Convert to fraction form
    1,248,669.74/1,723,242.28 = 704,897.66/x
  3. Step 3: Cross multiply
    1,248,669.74x = 1,723,242.28 × 704,897.66
  4. Step 4: Simplify right side
    1,248,669.74x = 1,214,709,450,785.07
  5. Step 5: Solve for x
    x = 1,214,709,450,785.07/1,248,669.74
  6. Step 6: Final answer
    x = 972,802.83

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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.