Home / 619,114.32-928,619.64-438,452.56

Finding the Fourth Proportional to 619,114.32, 928,619.64 and 438,452.56

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Solution

The fourth proportional to 619,114.32, 928,619.64 and 438,452.56 is: 657,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,114.32 : 928,619.64 = 438,452.56 : x
  2. Step 2: Convert to fraction form
    619,114.32/928,619.64 = 438,452.56/x
  3. Step 3: Cross multiply
    619,114.32x = 928,619.64 × 438,452.56
  4. Step 4: Simplify right side
    619,114.32x = 407,155,658,424.28
  5. Step 5: Solve for x
    x = 407,155,658,424.28/619,114.32
  6. Step 6: Final answer
    x = 657,642.13

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1.5x scale

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.