Home / 403,541.80-605,312.70-359,996.20

Finding the Fourth Proportional to 403,541.80, 605,312.70 and 359,996.20

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Solution

The fourth proportional to 403,541.80, 605,312.70 and 359,996.20 is: 539,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,541.80 : 605,312.70 = 359,996.20 : x
  2. Step 2: Convert to fraction form
    403,541.80/605,312.70 = 359,996.20/x
  3. Step 3: Cross multiply
    403,541.80x = 605,312.70 × 359,996.20
  4. Step 4: Simplify right side
    403,541.80x = 217,910,271,811.74
  5. Step 5: Solve for x
    x = 217,910,271,811.74/403,541.80
  6. Step 6: Final answer
    x = 539,994.30

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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.