Home / 771,340.08-1,064,453.48-427,187.28

Finding the Fourth Proportional to 771,340.08, 1,064,453.48 and 427,187.28

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Solution

The fourth proportional to 771,340.08, 1,064,453.48 and 427,187.28 is: 589,520.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,340.08 : 1,064,453.48 = 427,187.28 : x
  2. Step 2: Convert to fraction form
    771,340.08/1,064,453.48 = 427,187.28/x
  3. Step 3: Cross multiply
    771,340.08x = 1,064,453.48 × 427,187.28
  4. Step 4: Simplify right side
    771,340.08x = 454,720,986,807.73
  5. Step 5: Solve for x
    x = 454,720,986,807.73/771,340.08
  6. Step 6: Final answer
    x = 589,520.76

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Double scale
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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.