Home / 689,718.16-951,810.96-383,814.22

Finding the Fourth Proportional to 689,718.16, 951,810.96 and 383,814.22

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Solution

The fourth proportional to 689,718.16, 951,810.96 and 383,814.22 is: 529,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,718.16 : 951,810.96 = 383,814.22 : x
  2. Step 2: Convert to fraction form
    689,718.16/951,810.96 = 383,814.22/x
  3. Step 3: Cross multiply
    689,718.16x = 951,810.96 × 383,814.22
  4. Step 4: Simplify right side
    689,718.16x = 365,318,581,199.85
  5. Step 5: Solve for x
    x = 365,318,581,199.85/689,718.16
  6. Step 6: Final answer
    x = 529,663.57

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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.