Home / 738,657.05-1,019,347.00-399,125.30

Finding the Fourth Proportional to 738,657.05, 1,019,347.00 and 399,125.30

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Solution

The fourth proportional to 738,657.05, 1,019,347.00 and 399,125.30 is: 550,793.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,657.05 : 1,019,347.00 = 399,125.30 : x
  2. Step 2: Convert to fraction form
    738,657.05/1,019,347.00 = 399,125.30/x
  3. Step 3: Cross multiply
    738,657.05x = 1,019,347.00 × 399,125.30
  4. Step 4: Simplify right side
    738,657.05x = 406,847,171,084.55
  5. Step 5: Solve for x
    x = 406,847,171,084.55/738,657.05
  6. Step 6: Final answer
    x = 550,793.06

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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.