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Finding the Fourth Proportional to 595,021.01, 821,013.51 and 353,379.38

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Solution

The fourth proportional to 595,021.01, 821,013.51 and 353,379.38 is: 487,594.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,021.01 : 821,013.51 = 353,379.38 : x
  2. Step 2: Convert to fraction form
    595,021.01/821,013.51 = 353,379.38/x
  3. Step 3: Cross multiply
    595,021.01x = 821,013.51 × 353,379.38
  4. Step 4: Simplify right side
    595,021.01x = 290,129,241,030.36
  5. Step 5: Solve for x
    x = 290,129,241,030.36/595,021.01
  6. Step 6: Final answer
    x = 487,594.96

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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.