Home / 621,961.02-858,312.30-346,322.75

Finding the Fourth Proportional to 621,961.02, 858,312.30 and 346,322.75

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Solution

The fourth proportional to 621,961.02, 858,312.30 and 346,322.75 is: 477,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,961.02 : 858,312.30 = 346,322.75 : x
  2. Step 2: Convert to fraction form
    621,961.02/858,312.30 = 346,322.75/x
  3. Step 3: Cross multiply
    621,961.02x = 858,312.30 × 346,322.75
  4. Step 4: Simplify right side
    621,961.02x = 297,253,071,803.26
  5. Step 5: Solve for x
    x = 297,253,071,803.26/621,961.02
  6. Step 6: Final answer
    x = 477,928.78

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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.