Home / 1,216,385.69-1,678,582.67-672,507.47

Finding the Fourth Proportional to 1,216,385.69, 1,678,582.67 and 672,507.47

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Solution

The fourth proportional to 1,216,385.69, 1,678,582.67 and 672,507.47 is: 928,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,385.69 : 1,678,582.67 = 672,507.47 : x
  2. Step 2: Convert to fraction form
    1,216,385.69/1,678,582.67 = 672,507.47/x
  3. Step 3: Cross multiply
    1,216,385.69x = 1,678,582.67 × 672,507.47
  4. Step 4: Simplify right side
    1,216,385.69x = 1,128,859,381,225.01
  5. Step 5: Solve for x
    x = 1,128,859,381,225.01/1,216,385.69
  6. Step 6: Final answer
    x = 928,043.95

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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.