Home / 689,674.23-951,607.85-403,138.89

Finding the Fourth Proportional to 689,674.23, 951,607.85 and 403,138.89

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Solution

The fourth proportional to 689,674.23, 951,607.85 and 403,138.89 is: 556,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,674.23 : 951,607.85 = 403,138.89 : x
  2. Step 2: Convert to fraction form
    689,674.23/951,607.85 = 403,138.89/x
  3. Step 3: Cross multiply
    689,674.23x = 951,607.85 × 403,138.89
  4. Step 4: Simplify right side
    689,674.23x = 383,630,130,348.59
  5. Step 5: Solve for x
    x = 383,630,130,348.59/689,674.23
  6. Step 6: Final answer
    x = 556,248.32

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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.