Home / 1,292,563.10-1,938,931.05-439,622.30

Finding the Fourth Proportional to 1,292,563.10, 1,938,931.05 and 439,622.30

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Solution

The fourth proportional to 1,292,563.10, 1,938,931.05 and 439,622.30 is: 659,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,563.10 : 1,938,931.05 = 439,622.30 : x
  2. Step 2: Convert to fraction form
    1,292,563.10/1,938,931.05 = 439,622.30/x
  3. Step 3: Cross multiply
    1,292,563.10x = 1,938,931.05 × 439,622.30
  4. Step 4: Simplify right side
    1,292,563.10x = 852,397,327,742.42
  5. Step 5: Solve for x
    x = 852,397,327,742.42/1,292,563.10
  6. Step 6: Final answer
    x = 659,462.84

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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.