Home / 825,630.04-1,138,885.57-519,220.40

Finding the Fourth Proportional to 825,630.04, 1,138,885.57 and 519,220.40

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Solution

The fourth proportional to 825,630.04, 1,138,885.57 and 519,220.40 is: 716,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,630.04 : 1,138,885.57 = 519,220.40 : x
  2. Step 2: Convert to fraction form
    825,630.04/1,138,885.57 = 519,220.40/x
  3. Step 3: Cross multiply
    825,630.04x = 1,138,885.57 × 519,220.40
  4. Step 4: Simplify right side
    825,630.04x = 591,332,624,705.87
  5. Step 5: Solve for x
    x = 591,332,624,705.87/825,630.04
  6. Step 6: Final answer
    x = 716,219.85

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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.