Home / 623,000.67-859,741.27-336,520.76

Finding the Fourth Proportional to 623,000.67, 859,741.27 and 336,520.76

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Solution

The fourth proportional to 623,000.67, 859,741.27 and 336,520.76 is: 464,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,000.67 : 859,741.27 = 336,520.76 : x
  2. Step 2: Convert to fraction form
    623,000.67/859,741.27 = 336,520.76/x
  3. Step 3: Cross multiply
    623,000.67x = 859,741.27 × 336,520.76
  4. Step 4: Simplify right side
    623,000.67x = 289,320,783,808.24
  5. Step 5: Solve for x
    x = 289,320,783,808.24/623,000.67
  6. Step 6: Final answer
    x = 464,398.83

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Double scale
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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.