Home / 519,452.20-777,623.10-308,981.80

Finding the Fourth Proportional to 519,452.20, 777,623.10 and 308,981.80

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Solution

The fourth proportional to 519,452.20, 777,623.10 and 308,981.80 is: 462,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,452.20 : 777,623.10 = 308,981.80 : x
  2. Step 2: Convert to fraction form
    519,452.20/777,623.10 = 308,981.80/x
  3. Step 3: Cross multiply
    519,452.20x = 777,623.10 × 308,981.80
  4. Step 4: Simplify right side
    519,452.20x = 240,271,385,159.58
  5. Step 5: Solve for x
    x = 240,271,385,159.58/519,452.20
  6. Step 6: Final answer
    x = 462,547.63

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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.