Home / 539,723.39-744,804.06-298,000.76

Finding the Fourth Proportional to 539,723.39, 744,804.06 and 298,000.76

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Solution

The fourth proportional to 539,723.39, 744,804.06 and 298,000.76 is: 411,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,723.39 : 744,804.06 = 298,000.76 : x
  2. Step 2: Convert to fraction form
    539,723.39/744,804.06 = 298,000.76/x
  3. Step 3: Cross multiply
    539,723.39x = 744,804.06 × 298,000.76
  4. Step 4: Simplify right side
    539,723.39x = 221,952,172,207.07
  5. Step 5: Solve for x
    x = 221,952,172,207.07/539,723.39
  6. Step 6: Final answer
    x = 411,233.20

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Half scale
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Double scale
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Similar ratio
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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.