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Finding the Fourth Proportional to 573,115.95, 790,861.59 and 314,987.31

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Solution

The fourth proportional to 573,115.95, 790,861.59 and 314,987.31 is: 434,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,115.95 : 790,861.59 = 314,987.31 : x
  2. Step 2: Convert to fraction form
    573,115.95/790,861.59 = 314,987.31/x
  3. Step 3: Cross multiply
    573,115.95x = 790,861.59 × 314,987.31
  4. Step 4: Simplify right side
    573,115.95x = 249,111,364,816.42
  5. Step 5: Solve for x
    x = 249,111,364,816.42/573,115.95
  6. Step 6: Final answer
    x = 434,661.37

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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.