Home / 1,719,223.20-2,578,834.80-457,178.40

Finding the Fourth Proportional to 1,719,223.20, 2,578,834.80 and 457,178.40

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Solution

The fourth proportional to 1,719,223.20, 2,578,834.80 and 457,178.40 is: 685,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,223.20 : 2,578,834.80 = 457,178.40 : x
  2. Step 2: Convert to fraction form
    1,719,223.20/2,578,834.80 = 457,178.40/x
  3. Step 3: Cross multiply
    1,719,223.20x = 2,578,834.80 × 457,178.40
  4. Step 4: Simplify right side
    1,719,223.20x = 1,178,987,567,728.32
  5. Step 5: Solve for x
    x = 1,178,987,567,728.32/1,719,223.20
  6. Step 6: Final answer
    x = 685,767.60

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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.