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Finding the Fourth Proportional to 573,164.20, 859,746.30 and 518,051.80

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Solution

The fourth proportional to 573,164.20, 859,746.30 and 518,051.80 is: 777,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,164.20 : 859,746.30 = 518,051.80 : x
  2. Step 2: Convert to fraction form
    573,164.20/859,746.30 = 518,051.80/x
  3. Step 3: Cross multiply
    573,164.20x = 859,746.30 × 518,051.80
  4. Step 4: Simplify right side
    573,164.20x = 445,393,118,258.34
  5. Step 5: Solve for x
    x = 445,393,118,258.34/573,164.20
  6. Step 6: Final answer
    x = 777,077.70

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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.