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Finding the Fourth Proportional to 353,656.20, 529,706.70 and 307,000.20

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Solution

The fourth proportional to 353,656.20, 529,706.70 and 307,000.20 is: 459,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,656.20 : 529,706.70 = 307,000.20 : x
  2. Step 2: Convert to fraction form
    353,656.20/529,706.70 = 307,000.20/x
  3. Step 3: Cross multiply
    353,656.20x = 529,706.70 × 307,000.20
  4. Step 4: Simplify right side
    353,656.20x = 162,620,062,841.34
  5. Step 5: Solve for x
    x = 162,620,062,841.34/353,656.20
  6. Step 6: Final answer
    x = 459,825.28

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1.5x scale

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.