Home / 919,209.32-1,380,105.72-470,252.24

Finding the Fourth Proportional to 919,209.32, 1,380,105.72 and 470,252.24

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Solution

The fourth proportional to 919,209.32, 1,380,105.72 and 470,252.24 is: 706,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,209.32 : 1,380,105.72 = 470,252.24 : x
  2. Step 2: Convert to fraction form
    919,209.32/1,380,105.72 = 470,252.24/x
  3. Step 3: Cross multiply
    919,209.32x = 1,380,105.72 × 470,252.24
  4. Step 4: Simplify right side
    919,209.32x = 648,997,806,266.81
  5. Step 5: Solve for x
    x = 648,997,806,266.81/919,209.32
  6. Step 6: Final answer
    x = 706,039.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.