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Finding the Fourth Proportional to 567,276.07, 782,840.95 and 312,627.26

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Solution

The fourth proportional to 567,276.07, 782,840.95 and 312,627.26 is: 431,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,276.07 : 782,840.95 = 312,627.26 : x
  2. Step 2: Convert to fraction form
    567,276.07/782,840.95 = 312,627.26/x
  3. Step 3: Cross multiply
    567,276.07x = 782,840.95 × 312,627.26
  4. Step 4: Simplify right side
    567,276.07x = 244,737,416,518.52
  5. Step 5: Solve for x
    x = 244,737,416,518.52/567,276.07
  6. Step 6: Final answer
    x = 431,425.60

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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.