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Finding the Fourth Proportional to 590,909.80, 886,641.51 and 291,226.89

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Solution

The fourth proportional to 590,909.80, 886,641.51 and 291,226.89 is: 436,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,909.80 : 886,641.51 = 291,226.89 : x
  2. Step 2: Convert to fraction form
    590,909.80/886,641.51 = 291,226.89/x
  3. Step 3: Cross multiply
    590,909.80x = 886,641.51 × 291,226.89
  4. Step 4: Simplify right side
    590,909.80x = 258,213,849,502.20
  5. Step 5: Solve for x
    x = 258,213,849,502.20/590,909.80
  6. Step 6: Final answer
    x = 436,976.76

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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.