Home / 714,157.72-985,088.88-499,219.36

Finding the Fourth Proportional to 714,157.72, 985,088.88 and 499,219.36

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Solution

The fourth proportional to 714,157.72, 985,088.88 and 499,219.36 is: 688,609.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,157.72 : 985,088.88 = 499,219.36 : x
  2. Step 2: Convert to fraction form
    714,157.72/985,088.88 = 499,219.36/x
  3. Step 3: Cross multiply
    714,157.72x = 985,088.88 × 499,219.36
  4. Step 4: Simplify right side
    714,157.72x = 491,775,440,216.72
  5. Step 5: Solve for x
    x = 491,775,440,216.72/714,157.72
  6. Step 6: Final answer
    x = 688,609.01

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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.