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Finding the Fourth Proportional to 493,764.30, 740,646.45 and 454,884.30

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Solution

The fourth proportional to 493,764.30, 740,646.45 and 454,884.30 is: 682,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,764.30 : 740,646.45 = 454,884.30 : x
  2. Step 2: Convert to fraction form
    493,764.30/740,646.45 = 454,884.30/x
  3. Step 3: Cross multiply
    493,764.30x = 740,646.45 × 454,884.30
  4. Step 4: Simplify right side
    493,764.30x = 336,908,441,955.74
  5. Step 5: Solve for x
    x = 336,908,441,955.74/493,764.30
  6. Step 6: Final answer
    x = 682,326.45

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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.