Home / 1,686,308.96-2,529,467.76-689,036.96

Finding the Fourth Proportional to 1,686,308.96, 2,529,467.76 and 689,036.96

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Solution

The fourth proportional to 1,686,308.96, 2,529,467.76 and 689,036.96 is: 1,033,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,308.96 : 2,529,467.76 = 689,036.96 : x
  2. Step 2: Convert to fraction form
    1,686,308.96/2,529,467.76 = 689,036.96/x
  3. Step 3: Cross multiply
    1,686,308.96x = 2,529,467.76 × 689,036.96
  4. Step 4: Simplify right side
    1,686,308.96x = 1,742,896,775,768.41
  5. Step 5: Solve for x
    x = 1,742,896,775,768.41/1,686,308.96
  6. Step 6: Final answer
    x = 1,033,557.21

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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.