Home / 1,210,644.01-1,670,764.56-666,779.68

Finding the Fourth Proportional to 1,210,644.01, 1,670,764.56 and 666,779.68

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Solution

The fourth proportional to 1,210,644.01, 1,670,764.56 and 666,779.68 is: 920,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,644.01 : 1,670,764.56 = 666,779.68 : x
  2. Step 2: Convert to fraction form
    1,210,644.01/1,670,764.56 = 666,779.68/x
  3. Step 3: Cross multiply
    1,210,644.01x = 1,670,764.56 × 666,779.68
  4. Step 4: Simplify right side
    1,210,644.01x = 1,114,031,858,672.14
  5. Step 5: Solve for x
    x = 1,114,031,858,672.14/1,210,644.01
  6. Step 6: Final answer
    x = 920,197.72

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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.