Home / 869,728.38-1,200,356.38-530,393.46

Finding the Fourth Proportional to 869,728.38, 1,200,356.38 and 530,393.46

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Solution

The fourth proportional to 869,728.38, 1,200,356.38 and 530,393.46 is: 732,023.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,728.38 : 1,200,356.38 = 530,393.46 : x
  2. Step 2: Convert to fraction form
    869,728.38/1,200,356.38 = 530,393.46/x
  3. Step 3: Cross multiply
    869,728.38x = 1,200,356.38 × 530,393.46
  4. Step 4: Simplify right side
    869,728.38x = 636,661,173,621.28
  5. Step 5: Solve for x
    x = 636,661,173,621.28/869,728.38
  6. Step 6: Final answer
    x = 732,023.00

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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.