Home / 820,628.32-1,133,066.88-530,411.56

Finding the Fourth Proportional to 820,628.32, 1,133,066.88 and 530,411.56

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Solution

The fourth proportional to 820,628.32, 1,133,066.88 and 530,411.56 is: 732,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,628.32 : 1,133,066.88 = 530,411.56 : x
  2. Step 2: Convert to fraction form
    820,628.32/1,133,066.88 = 530,411.56/x
  3. Step 3: Cross multiply
    820,628.32x = 1,133,066.88 × 530,411.56
  4. Step 4: Simplify right side
    820,628.32x = 600,991,771,405.13
  5. Step 5: Solve for x
    x = 600,991,771,405.13/820,628.32
  6. Step 6: Final answer
    x = 732,355.63

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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.