Home / 857,756.69-1,183,846.20-475,906.49

Finding the Fourth Proportional to 857,756.69, 1,183,846.20 and 475,906.49

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Solution

The fourth proportional to 857,756.69, 1,183,846.20 and 475,906.49 is: 656,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,756.69 : 1,183,846.20 = 475,906.49 : x
  2. Step 2: Convert to fraction form
    857,756.69/1,183,846.20 = 475,906.49/x
  3. Step 3: Cross multiply
    857,756.69x = 1,183,846.20 × 475,906.49
  4. Step 4: Simplify right side
    857,756.69x = 563,400,089,741.84
  5. Step 5: Solve for x
    x = 563,400,089,741.84/857,756.69
  6. Step 6: Final answer
    x = 656,829.72

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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.