Home / 649,579.32-896,400.75-359,185.80

Finding the Fourth Proportional to 649,579.32, 896,400.75 and 359,185.80

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Solution

The fourth proportional to 649,579.32, 896,400.75 and 359,185.80 is: 495,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,579.32 : 896,400.75 = 359,185.80 : x
  2. Step 2: Convert to fraction form
    649,579.32/896,400.75 = 359,185.80/x
  3. Step 3: Cross multiply
    649,579.32x = 896,400.75 × 359,185.80
  4. Step 4: Simplify right side
    649,579.32x = 321,974,420,509.35
  5. Step 5: Solve for x
    x = 321,974,420,509.35/649,579.32
  6. Step 6: Final answer
    x = 495,666.06

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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.