Home / 919,806.22-1,269,332.59-512,004.40

Finding the Fourth Proportional to 919,806.22, 1,269,332.59 and 512,004.40

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Solution

The fourth proportional to 919,806.22, 1,269,332.59 and 512,004.40 is: 706,566.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,806.22 : 1,269,332.59 = 512,004.40 : x
  2. Step 2: Convert to fraction form
    919,806.22/1,269,332.59 = 512,004.40/x
  3. Step 3: Cross multiply
    919,806.22x = 1,269,332.59 × 512,004.40
  4. Step 4: Simplify right side
    919,806.22x = 649,903,871,622.28
  5. Step 5: Solve for x
    x = 649,903,871,622.28/919,806.22
  6. Step 6: Final answer
    x = 706,566.07

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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.