Home / 945,816.95-1,305,258.90-516,120.66

Finding the Fourth Proportional to 945,816.95, 1,305,258.90 and 516,120.66

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Solution

The fourth proportional to 945,816.95, 1,305,258.90 and 516,120.66 is: 712,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,816.95 : 1,305,258.90 = 516,120.66 : x
  2. Step 2: Convert to fraction form
    945,816.95/1,305,258.90 = 516,120.66/x
  3. Step 3: Cross multiply
    945,816.95x = 1,305,258.90 × 516,120.66
  4. Step 4: Simplify right side
    945,816.95x = 673,671,084,938.87
  5. Step 5: Solve for x
    x = 673,671,084,938.87/945,816.95
  6. Step 6: Final answer
    x = 712,263.70

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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.