Home / 630,110.10-945,165.15-621,815.70

Finding the Fourth Proportional to 630,110.10, 945,165.15 and 621,815.70

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Solution

The fourth proportional to 630,110.10, 945,165.15 and 621,815.70 is: 932,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,110.10 : 945,165.15 = 621,815.70 : x
  2. Step 2: Convert to fraction form
    630,110.10/945,165.15 = 621,815.70/x
  3. Step 3: Cross multiply
    630,110.10x = 945,165.15 × 621,815.70
  4. Step 4: Simplify right side
    630,110.10x = 587,718,529,362.86
  5. Step 5: Solve for x
    x = 587,718,529,362.86/630,110.10
  6. Step 6: Final answer
    x = 932,723.55

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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.