Home / 563,291.20-777,342.18-308,642.32

Finding the Fourth Proportional to 563,291.20, 777,342.18 and 308,642.32

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Solution

The fourth proportional to 563,291.20, 777,342.18 and 308,642.32 is: 425,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,291.20 : 777,342.18 = 308,642.32 : x
  2. Step 2: Convert to fraction form
    563,291.20/777,342.18 = 308,642.32/x
  3. Step 3: Cross multiply
    563,291.20x = 777,342.18 × 308,642.32
  4. Step 4: Simplify right side
    563,291.20x = 239,920,693,869.06
  5. Step 5: Solve for x
    x = 239,920,693,869.06/563,291.20
  6. Step 6: Final answer
    x = 425,926.58

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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.