Home / 691,000.50-1,036,644.12-291,644.58

Finding the Fourth Proportional to 691,000.50, 1,036,644.12 and 291,644.58

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Solution

The fourth proportional to 691,000.50, 1,036,644.12 and 291,644.58 is: 437,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,000.50 : 1,036,644.12 = 291,644.58 : x
  2. Step 2: Convert to fraction form
    691,000.50/1,036,644.12 = 291,644.58/x
  3. Step 3: Cross multiply
    691,000.50x = 1,036,644.12 × 291,644.58
  4. Step 4: Simplify right side
    691,000.50x = 302,331,638,986.87
  5. Step 5: Solve for x
    x = 302,331,638,986.87/691,000.50
  6. Step 6: Final answer
    x = 437,527.38

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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.