Home / 689,569.30-951,648.45-383,713.93

Finding the Fourth Proportional to 689,569.30, 951,648.45 and 383,713.93

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Solution

The fourth proportional to 689,569.30, 951,648.45 and 383,713.93 is: 529,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,569.30 : 951,648.45 = 383,713.93 : x
  2. Step 2: Convert to fraction form
    689,569.30/951,648.45 = 383,713.93/x
  3. Step 3: Cross multiply
    689,569.30x = 951,648.45 × 383,713.93
  4. Step 4: Simplify right side
    689,569.30x = 365,160,769,155.05
  5. Step 5: Solve for x
    x = 365,160,769,155.05/689,569.30
  6. Step 6: Final answer
    x = 529,549.05

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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.