Home / 1,178,616.40-1,768,054.20-430,824.40

Finding the Fourth Proportional to 1,178,616.40, 1,768,054.20 and 430,824.40

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Solution

The fourth proportional to 1,178,616.40, 1,768,054.20 and 430,824.40 is: 646,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,616.40 : 1,768,054.20 = 430,824.40 : x
  2. Step 2: Convert to fraction form
    1,178,616.40/1,768,054.20 = 430,824.40/x
  3. Step 3: Cross multiply
    1,178,616.40x = 1,768,054.20 × 430,824.40
  4. Step 4: Simplify right side
    1,178,616.40x = 761,720,889,882.48
  5. Step 5: Solve for x
    x = 761,720,889,882.48/1,178,616.40
  6. Step 6: Final answer
    x = 646,283.97

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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.