Home / 352,621.80-528,932.70-345,623.40

Finding the Fourth Proportional to 352,621.80, 528,932.70 and 345,623.40

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Solution

The fourth proportional to 352,621.80, 528,932.70 and 345,623.40 is: 518,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,621.80 : 528,932.70 = 345,623.40 : x
  2. Step 2: Convert to fraction form
    352,621.80/528,932.70 = 345,623.40/x
  3. Step 3: Cross multiply
    352,621.80x = 528,932.70 × 345,623.40
  4. Step 4: Simplify right side
    352,621.80x = 182,811,518,145.18
  5. Step 5: Solve for x
    x = 182,811,518,145.18/352,621.80
  6. Step 6: Final answer
    x = 518,435.10

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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.