Home / 648,738.36-887,478.68-646,005.94

Finding the Fourth Proportional to 648,738.36, 887,478.68 and 646,005.94

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Solution

The fourth proportional to 648,738.36, 887,478.68 and 646,005.94 is: 883,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,738.36 : 887,478.68 = 646,005.94 : x
  2. Step 2: Convert to fraction form
    648,738.36/887,478.68 = 646,005.94/x
  3. Step 3: Cross multiply
    648,738.36x = 887,478.68 × 646,005.94
  4. Step 4: Simplify right side
    648,738.36x = 573,316,498,903.36
  5. Step 5: Solve for x
    x = 573,316,498,903.36/648,738.36
  6. Step 6: Final answer
    x = 883,740.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.