Home / 671,113.08-926,157.78-384,687.36

Finding the Fourth Proportional to 671,113.08, 926,157.78 and 384,687.36

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Solution

The fourth proportional to 671,113.08, 926,157.78 and 384,687.36 is: 530,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,113.08 : 926,157.78 = 384,687.36 : x
  2. Step 2: Convert to fraction form
    671,113.08/926,157.78 = 384,687.36/x
  3. Step 3: Cross multiply
    671,113.08x = 926,157.78 × 384,687.36
  4. Step 4: Simplify right side
    671,113.08x = 356,281,191,331.66
  5. Step 5: Solve for x
    x = 356,281,191,331.66/671,113.08
  6. Step 6: Final answer
    x = 530,881.01

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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.