Home / 822,905.40-1,236,431.70-523,529.40

Finding the Fourth Proportional to 822,905.40, 1,236,431.70 and 523,529.40

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Solution

The fourth proportional to 822,905.40, 1,236,431.70 and 523,529.40 is: 786,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,905.40 : 1,236,431.70 = 523,529.40 : x
  2. Step 2: Convert to fraction form
    822,905.40/1,236,431.70 = 523,529.40/x
  3. Step 3: Cross multiply
    822,905.40x = 1,236,431.70 × 523,529.40
  4. Step 4: Simplify right side
    822,905.40x = 647,308,346,041.98
  5. Step 5: Solve for x
    x = 647,308,346,041.98/822,905.40
  6. Step 6: Final answer
    x = 786,613.32

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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.