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Finding the Fourth Proportional to 586,892.49, 880,338.74 and 320,507.69

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Solution

The fourth proportional to 586,892.49, 880,338.74 and 320,507.69 is: 480,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,892.49 : 880,338.74 = 320,507.69 : x
  2. Step 2: Convert to fraction form
    586,892.49/880,338.74 = 320,507.69/x
  3. Step 3: Cross multiply
    586,892.49x = 880,338.74 × 320,507.69
  4. Step 4: Simplify right side
    586,892.49x = 282,155,336,573.22
  5. Step 5: Solve for x
    x = 282,155,336,573.22/586,892.49
  6. Step 6: Final answer
    x = 480,761.54

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.