Home / 1,216,510.53-1,678,712.39-672,603.63

Finding the Fourth Proportional to 1,216,510.53, 1,678,712.39 and 672,603.63

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Solution

The fourth proportional to 1,216,510.53, 1,678,712.39 and 672,603.63 is: 928,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,510.53 : 1,678,712.39 = 672,603.63 : x
  2. Step 2: Convert to fraction form
    1,216,510.53/1,678,712.39 = 672,603.63/x
  3. Step 3: Cross multiply
    1,216,510.53x = 1,678,712.39 × 672,603.63
  4. Step 4: Simplify right side
    1,216,510.53x = 1,129,108,047,239.98
  5. Step 5: Solve for x
    x = 1,129,108,047,239.98/1,216,510.53
  6. Step 6: Final answer
    x = 928,153.12

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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.