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Finding the Fourth Proportional to 531,622.34, 733,656.54 and 289,918.10

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Solution

The fourth proportional to 531,622.34, 733,656.54 and 289,918.10 is: 400,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,622.34 : 733,656.54 = 289,918.10 : x
  2. Step 2: Convert to fraction form
    531,622.34/733,656.54 = 289,918.10/x
  3. Step 3: Cross multiply
    531,622.34x = 733,656.54 × 289,918.10
  4. Step 4: Simplify right side
    531,622.34x = 212,700,310,129.37
  5. Step 5: Solve for x
    x = 212,700,310,129.37/531,622.34
  6. Step 6: Final answer
    x = 400,096.64

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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.