Home / 630,795.40-944,637.90-419,288.20

Finding the Fourth Proportional to 630,795.40, 944,637.90 and 419,288.20

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Solution

The fourth proportional to 630,795.40, 944,637.90 and 419,288.20 is: 627,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,795.40 : 944,637.90 = 419,288.20 : x
  2. Step 2: Convert to fraction form
    630,795.40/944,637.90 = 419,288.20/x
  3. Step 3: Cross multiply
    630,795.40x = 944,637.90 × 419,288.20
  4. Step 4: Simplify right side
    630,795.40x = 396,075,524,742.78
  5. Step 5: Solve for x
    x = 396,075,524,742.78/630,795.40
  6. Step 6: Final answer
    x = 627,898.56

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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.