Home / 1,216,529.31-1,678,663.94-672,591.63

Finding the Fourth Proportional to 1,216,529.31, 1,678,663.94 and 672,591.63

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Solution

The fourth proportional to 1,216,529.31, 1,678,663.94 and 672,591.63 is: 928,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,529.31 : 1,678,663.94 = 672,591.63 : x
  2. Step 2: Convert to fraction form
    1,216,529.31/1,678,663.94 = 672,591.63/x
  3. Step 3: Cross multiply
    1,216,529.31x = 1,678,663.94 × 672,591.63
  4. Step 4: Simplify right side
    1,216,529.31x = 1,129,055,312,263.86
  5. Step 5: Solve for x
    x = 1,129,055,312,263.86/1,216,529.31
  6. Step 6: Final answer
    x = 928,095.45

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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.