Home / 563,579.04-777,742.48-308,929.44

Finding the Fourth Proportional to 563,579.04, 777,742.48 and 308,929.44

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Solution

The fourth proportional to 563,579.04, 777,742.48 and 308,929.44 is: 426,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,579.04 : 777,742.48 = 308,929.44 : x
  2. Step 2: Convert to fraction form
    563,579.04/777,742.48 = 308,929.44/x
  3. Step 3: Cross multiply
    563,579.04x = 777,742.48 × 308,929.44
  4. Step 4: Simplify right side
    563,579.04x = 240,267,548,810.61
  5. Step 5: Solve for x
    x = 240,267,548,810.61/563,579.04
  6. Step 6: Final answer
    x = 426,324.49

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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.