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Finding the Fourth Proportional to 673,382.76, 928,514.71 and 550,491.58

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Solution

The fourth proportional to 673,382.76, 928,514.71 and 550,491.58 is: 759,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,382.76 : 928,514.71 = 550,491.58 : x
  2. Step 2: Convert to fraction form
    673,382.76/928,514.71 = 550,491.58/x
  3. Step 3: Cross multiply
    673,382.76x = 928,514.71 × 550,491.58
  4. Step 4: Simplify right side
    673,382.76x = 511,139,529,761.14
  5. Step 5: Solve for x
    x = 511,139,529,761.14/673,382.76
  6. Step 6: Final answer
    x = 759,062.39

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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.