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Finding the Fourth Proportional to 673,070.93, 930,047.47 and 511,645.73

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Solution

The fourth proportional to 673,070.93, 930,047.47 and 511,645.73 is: 706,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,070.93 : 930,047.47 = 511,645.73 : x
  2. Step 2: Convert to fraction form
    673,070.93/930,047.47 = 511,645.73/x
  3. Step 3: Cross multiply
    673,070.93x = 930,047.47 × 511,645.73
  4. Step 4: Simplify right side
    673,070.93x = 475,854,810,793.45
  5. Step 5: Solve for x
    x = 475,854,810,793.45/673,070.93
  6. Step 6: Final answer
    x = 706,990.58

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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.