Home / 806,440.40-1,209,660.60-523,005.20

Finding the Fourth Proportional to 806,440.40, 1,209,660.60 and 523,005.20

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Solution

The fourth proportional to 806,440.40, 1,209,660.60 and 523,005.20 is: 784,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,440.40 : 1,209,660.60 = 523,005.20 : x
  2. Step 2: Convert to fraction form
    806,440.40/1,209,660.60 = 523,005.20/x
  3. Step 3: Cross multiply
    806,440.40x = 1,209,660.60 × 523,005.20
  4. Step 4: Simplify right side
    806,440.40x = 632,658,784,035.12
  5. Step 5: Solve for x
    x = 632,658,784,035.12/806,440.40
  6. Step 6: Final answer
    x = 784,507.80

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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.