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Finding the Fourth Proportional to 573,045.47, 790,755.21 and 314,908.85

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Solution

The fourth proportional to 573,045.47, 790,755.21 and 314,908.85 is: 434,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,045.47 : 790,755.21 = 314,908.85 : x
  2. Step 2: Convert to fraction form
    573,045.47/790,755.21 = 314,908.85/x
  3. Step 3: Cross multiply
    573,045.47x = 790,755.21 × 314,908.85
  4. Step 4: Simplify right side
    573,045.47x = 249,015,809,858.83
  5. Step 5: Solve for x
    x = 249,015,809,858.83/573,045.47
  6. Step 6: Final answer
    x = 434,548.09

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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.