Home / 1,292,172.93-1,938,357.78-393,691.35

Finding the Fourth Proportional to 1,292,172.93, 1,938,357.78 and 393,691.35

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Solution

The fourth proportional to 1,292,172.93, 1,938,357.78 and 393,691.35 is: 590,567.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,172.93 : 1,938,357.78 = 393,691.35 : x
  2. Step 2: Convert to fraction form
    1,292,172.93/1,938,357.78 = 393,691.35/x
  3. Step 3: Cross multiply
    1,292,172.93x = 1,938,357.78 × 393,691.35
  4. Step 4: Simplify right side
    1,292,172.93x = 763,114,691,191.20
  5. Step 5: Solve for x
    x = 763,114,691,191.20/1,292,172.93
  6. Step 6: Final answer
    x = 590,567.00

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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.