Home / 644,818.05-888,911.08-450,622.85

Finding the Fourth Proportional to 644,818.05, 888,911.08 and 450,622.85

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Solution

The fourth proportional to 644,818.05, 888,911.08 and 450,622.85 is: 621,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,818.05 : 888,911.08 = 450,622.85 : x
  2. Step 2: Convert to fraction form
    644,818.05/888,911.08 = 450,622.85/x
  3. Step 3: Cross multiply
    644,818.05x = 888,911.08 × 450,622.85
  4. Step 4: Simplify right side
    644,818.05x = 400,563,637,568.51
  5. Step 5: Solve for x
    x = 400,563,637,568.51/644,818.05
  6. Step 6: Final answer
    x = 621,204.13

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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.