Home / 521,734.10-783,551.55-456,415.70

Finding the Fourth Proportional to 521,734.10, 783,551.55 and 456,415.70

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Solution

The fourth proportional to 521,734.10, 783,551.55 and 456,415.70 is: 685,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,734.10 : 783,551.55 = 456,415.70 : x
  2. Step 2: Convert to fraction form
    521,734.10/783,551.55 = 456,415.70/x
  3. Step 3: Cross multiply
    521,734.10x = 783,551.55 × 456,415.70
  4. Step 4: Simplify right side
    521,734.10x = 357,625,229,179.34
  5. Step 5: Solve for x
    x = 357,625,229,179.34/521,734.10
  6. Step 6: Final answer
    x = 685,454.96

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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.