Home / 1,098,855.30-1,648,574.55-388,809.30

Finding the Fourth Proportional to 1,098,855.30, 1,648,574.55 and 388,809.30

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Solution

The fourth proportional to 1,098,855.30, 1,648,574.55 and 388,809.30 is: 583,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,855.30 : 1,648,574.55 = 388,809.30 : x
  2. Step 2: Convert to fraction form
    1,098,855.30/1,648,574.55 = 388,809.30/x
  3. Step 3: Cross multiply
    1,098,855.30x = 1,648,574.55 × 388,809.30
  4. Step 4: Simplify right side
    1,098,855.30x = 640,981,116,783.32
  5. Step 5: Solve for x
    x = 640,981,116,783.32/1,098,855.30
  6. Step 6: Final answer
    x = 583,317.13

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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.