Home / 515,905.56-773,158.38-291,154.84

Finding the Fourth Proportional to 515,905.56, 773,158.38 and 291,154.84

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Solution

The fourth proportional to 515,905.56, 773,158.38 and 291,154.84 is: 436,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,905.56 : 773,158.38 = 291,154.84 : x
  2. Step 2: Convert to fraction form
    515,905.56/773,158.38 = 291,154.84/x
  3. Step 3: Cross multiply
    515,905.56x = 773,158.38 × 291,154.84
  4. Step 4: Simplify right side
    515,905.56x = 225,108,804,423.56
  5. Step 5: Solve for x
    x = 225,108,804,423.56/515,905.56
  6. Step 6: Final answer
    x = 436,337.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.