Home / 718,056.13-990,923.51-395,767.03

Finding the Fourth Proportional to 718,056.13, 990,923.51 and 395,767.03

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Solution

The fourth proportional to 718,056.13, 990,923.51 and 395,767.03 is: 546,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,056.13 : 990,923.51 = 395,767.03 : x
  2. Step 2: Convert to fraction form
    718,056.13/990,923.51 = 395,767.03/x
  3. Step 3: Cross multiply
    718,056.13x = 990,923.51 × 395,767.03
  4. Step 4: Simplify right side
    718,056.13x = 392,174,854,509.88
  5. Step 5: Solve for x
    x = 392,174,854,509.88/718,056.13
  6. Step 6: Final answer
    x = 546,161.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.