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Finding the Fourth Proportional to 531,312.15, 733,204.29 and 289,593.96

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Solution

The fourth proportional to 531,312.15, 733,204.29 and 289,593.96 is: 399,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,312.15 : 733,204.29 = 289,593.96 : x
  2. Step 2: Convert to fraction form
    531,312.15/733,204.29 = 289,593.96/x
  3. Step 3: Cross multiply
    531,312.15x = 733,204.29 × 289,593.96
  4. Step 4: Simplify right side
    531,312.15x = 212,331,533,830.09
  5. Step 5: Solve for x
    x = 212,331,533,830.09/531,312.15
  6. Step 6: Final answer
    x = 399,636.13

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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.