Home / 648,024.75-894,438.18-386,661.24

Finding the Fourth Proportional to 648,024.75, 894,438.18 and 386,661.24

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Solution

The fourth proportional to 648,024.75, 894,438.18 and 386,661.24 is: 533,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,024.75 : 894,438.18 = 386,661.24 : x
  2. Step 2: Convert to fraction form
    648,024.75/894,438.18 = 386,661.24/x
  3. Step 3: Cross multiply
    648,024.75x = 894,438.18 × 386,661.24
  4. Step 4: Simplify right side
    648,024.75x = 345,844,575,782.14
  5. Step 5: Solve for x
    x = 345,844,575,782.14/648,024.75
  6. Step 6: Final answer
    x = 533,690.38

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1.5x scale

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.