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Finding the Fourth Proportional to 573,153.98, 790,707.09 and 357,920.42

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Solution

The fourth proportional to 573,153.98, 790,707.09 and 357,920.42 is: 493,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,153.98 : 790,707.09 = 357,920.42 : x
  2. Step 2: Convert to fraction form
    573,153.98/790,707.09 = 357,920.42/x
  3. Step 3: Cross multiply
    573,153.98x = 790,707.09 × 357,920.42
  4. Step 4: Simplify right side
    573,153.98x = 283,010,213,749.78
  5. Step 5: Solve for x
    x = 283,010,213,749.78/573,153.98
  6. Step 6: Final answer
    x = 493,776.93

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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.