Home / 521,764.10-783,596.55-456,445.70

Finding the Fourth Proportional to 521,764.10, 783,596.55 and 456,445.70

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Solution

The fourth proportional to 521,764.10, 783,596.55 and 456,445.70 is: 685,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,764.10 : 783,596.55 = 456,445.70 : x
  2. Step 2: Convert to fraction form
    521,764.10/783,596.55 = 456,445.70/x
  3. Step 3: Cross multiply
    521,764.10x = 783,596.55 × 456,445.70
  4. Step 4: Simplify right side
    521,764.10x = 357,669,275,782.34
  5. Step 5: Solve for x
    x = 357,669,275,782.34/521,764.10
  6. Step 6: Final answer
    x = 685,499.97

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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.