Home / 563,245.32-777,248.82-321,518.28

Finding the Fourth Proportional to 563,245.32, 777,248.82 and 321,518.28

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Solution

The fourth proportional to 563,245.32, 777,248.82 and 321,518.28 is: 443,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,245.32 : 777,248.82 = 321,518.28 : x
  2. Step 2: Convert to fraction form
    563,245.32/777,248.82 = 321,518.28/x
  3. Step 3: Cross multiply
    563,245.32x = 777,248.82 × 321,518.28
  4. Step 4: Simplify right side
    563,245.32x = 249,899,703,738.43
  5. Step 5: Solve for x
    x = 249,899,703,738.43/563,245.32
  6. Step 6: Final answer
    x = 443,678.26

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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.