Home / 881,536.34-1,216,545.81-499,550.42

Finding the Fourth Proportional to 881,536.34, 1,216,545.81 and 499,550.42

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Solution

The fourth proportional to 881,536.34, 1,216,545.81 and 499,550.42 is: 689,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,536.34 : 1,216,545.81 = 499,550.42 : x
  2. Step 2: Convert to fraction form
    881,536.34/1,216,545.81 = 499,550.42/x
  3. Step 3: Cross multiply
    881,536.34x = 1,216,545.81 × 499,550.42
  4. Step 4: Simplify right side
    881,536.34x = 607,725,970,334.74
  5. Step 5: Solve for x
    x = 607,725,970,334.74/881,536.34
  6. Step 6: Final answer
    x = 689,394.12

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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.