Home / 771,606.36-1,064,805.18-427,441.20

Finding the Fourth Proportional to 771,606.36, 1,064,805.18 and 427,441.20

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Solution

The fourth proportional to 771,606.36, 1,064,805.18 and 427,441.20 is: 589,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,606.36 : 1,064,805.18 = 427,441.20 : x
  2. Step 2: Convert to fraction form
    771,606.36/1,064,805.18 = 427,441.20/x
  3. Step 3: Cross multiply
    771,606.36x = 1,064,805.18 × 427,441.20
  4. Step 4: Simplify right side
    771,606.36x = 455,141,603,905.42
  5. Step 5: Solve for x
    x = 455,141,603,905.42/771,606.36
  6. Step 6: Final answer
    x = 589,862.43

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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.