Home / 689,290.74-951,148.65-383,317.59

Finding the Fourth Proportional to 689,290.74, 951,148.65 and 383,317.59

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Solution

The fourth proportional to 689,290.74, 951,148.65 and 383,317.59 is: 528,937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,290.74 : 951,148.65 = 383,317.59 : x
  2. Step 2: Convert to fraction form
    689,290.74/951,148.65 = 383,317.59/x
  3. Step 3: Cross multiply
    689,290.74x = 951,148.65 × 383,317.59
  4. Step 4: Simplify right side
    689,290.74x = 364,592,008,249.75
  5. Step 5: Solve for x
    x = 364,592,008,249.75/689,290.74
  6. Step 6: Final answer
    x = 528,937.92

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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.