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Finding the Fourth Proportional to 555,784.74, 766,983.60 and 301,135.92

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Solution

The fourth proportional to 555,784.74, 766,983.60 and 301,135.92 is: 415,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,784.74 : 766,983.60 = 301,135.92 : x
  2. Step 2: Convert to fraction form
    555,784.74/766,983.60 = 301,135.92/x
  3. Step 3: Cross multiply
    555,784.74x = 766,983.60 × 301,135.92
  4. Step 4: Simplify right side
    555,784.74x = 230,966,312,010.91
  5. Step 5: Solve for x
    x = 230,966,312,010.91/555,784.74
  6. Step 6: Final answer
    x = 415,567.93

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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.