Home / 683,655.03-943,428.20-377,715.60

Finding the Fourth Proportional to 683,655.03, 943,428.20 and 377,715.60

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Solution

The fourth proportional to 683,655.03, 943,428.20 and 377,715.60 is: 521,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,655.03 : 943,428.20 = 377,715.60 : x
  2. Step 2: Convert to fraction form
    683,655.03/943,428.20 = 377,715.60/x
  3. Step 3: Cross multiply
    683,655.03x = 943,428.20 × 377,715.60
  4. Step 4: Simplify right side
    683,655.03x = 356,347,546,731.34
  5. Step 5: Solve for x
    x = 356,347,546,731.34/683,655.03
  6. Step 6: Final answer
    x = 521,238.83

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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.