Home / 563,281.17-777,067.45-498,816.10

Finding the Fourth Proportional to 563,281.17, 777,067.45 and 498,816.10

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Solution

The fourth proportional to 563,281.17, 777,067.45 and 498,816.10 is: 688,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,281.17 : 777,067.45 = 498,816.10 : x
  2. Step 2: Convert to fraction form
    563,281.17/777,067.45 = 498,816.10/x
  3. Step 3: Cross multiply
    563,281.17x = 777,067.45 × 498,816.10
  4. Step 4: Simplify right side
    563,281.17x = 387,613,754,845.95
  5. Step 5: Solve for x
    x = 387,613,754,845.95/563,281.17
  6. Step 6: Final answer
    x = 688,135.47

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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.