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Finding the Fourth Proportional to 529,263.20, 793,894.80 and 520,047.20

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Solution

The fourth proportional to 529,263.20, 793,894.80 and 520,047.20 is: 780,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,263.20 : 793,894.80 = 520,047.20 : x
  2. Step 2: Convert to fraction form
    529,263.20/793,894.80 = 520,047.20/x
  3. Step 3: Cross multiply
    529,263.20x = 793,894.80 × 520,047.20
  4. Step 4: Simplify right side
    529,263.20x = 412,862,767,834.56
  5. Step 5: Solve for x
    x = 412,862,767,834.56/529,263.20
  6. Step 6: Final answer
    x = 780,070.80

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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.