Home / 738,138.10-1,105,457.55-738,138.10

Finding the Fourth Proportional to 738,138.10, 1,105,457.55 and 738,138.10

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Solution

The fourth proportional to 738,138.10, 1,105,457.55 and 738,138.10 is: 1,105,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,138.10 : 1,105,457.55 = 738,138.10 : x
  2. Step 2: Convert to fraction form
    738,138.10/1,105,457.55 = 738,138.10/x
  3. Step 3: Cross multiply
    738,138.10x = 1,105,457.55 × 738,138.10
  4. Step 4: Simplify right side
    738,138.10x = 815,980,335,587.66
  5. Step 5: Solve for x
    x = 815,980,335,587.66/738,138.10
  6. Step 6: Final answer
    x = 1,105,457.55

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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.