Home / 877,181.10-1,316,290.05-639,926.70

Finding the Fourth Proportional to 877,181.10, 1,316,290.05 and 639,926.70

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Solution

The fourth proportional to 877,181.10, 1,316,290.05 and 639,926.70 is: 960,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,181.10 : 1,316,290.05 = 639,926.70 : x
  2. Step 2: Convert to fraction form
    877,181.10/1,316,290.05 = 639,926.70/x
  3. Step 3: Cross multiply
    877,181.10x = 1,316,290.05 × 639,926.70
  4. Step 4: Simplify right side
    877,181.10x = 842,329,147,939.34
  5. Step 5: Solve for x
    x = 842,329,147,939.34/877,181.10
  6. Step 6: Final answer
    x = 960,268.24

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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.