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Finding the Fourth Proportional to 1,935,607.86, 2,671,288.47 and 1,161,267.84

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Solution

The fourth proportional to 1,935,607.86, 2,671,288.47 and 1,161,267.84 is: 1,602,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,607.86 : 2,671,288.47 = 1,161,267.84 : x
  2. Step 2: Convert to fraction form
    1,935,607.86/2,671,288.47 = 1,161,267.84/x
  3. Step 3: Cross multiply
    1,935,607.86x = 2,671,288.47 × 1,161,267.84
  4. Step 4: Simplify right side
    1,935,607.86x = 3,102,081,391,573.81
  5. Step 5: Solve for x
    x = 3,102,081,391,573.81/1,935,607.86
  6. Step 6: Final answer
    x = 1,602,639.39

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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.