Home / 1,985,011.53-2,977,235.79-636,999.72

Finding the Fourth Proportional to 1,985,011.53, 2,977,235.79 and 636,999.72

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Solution

The fourth proportional to 1,985,011.53, 2,977,235.79 and 636,999.72 is: 955,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,011.53 : 2,977,235.79 = 636,999.72 : x
  2. Step 2: Convert to fraction form
    1,985,011.53/2,977,235.79 = 636,999.72/x
  3. Step 3: Cross multiply
    1,985,011.53x = 2,977,235.79 × 636,999.72
  4. Step 4: Simplify right side
    1,985,011.53x = 1,896,498,364,603.98
  5. Step 5: Solve for x
    x = 1,896,498,364,603.98/1,985,011.53
  6. Step 6: Final answer
    x = 955,409.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.