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Finding the Fourth Proportional to 531,281.01, 733,168.35 and 289,563.78

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Solution

The fourth proportional to 531,281.01, 733,168.35 and 289,563.78 is: 399,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,281.01 : 733,168.35 = 289,563.78 : x
  2. Step 2: Convert to fraction form
    531,281.01/733,168.35 = 289,563.78/x
  3. Step 3: Cross multiply
    531,281.01x = 733,168.35 × 289,563.78
  4. Step 4: Simplify right side
    531,281.01x = 212,298,998,802.36
  5. Step 5: Solve for x
    x = 212,298,998,802.36/531,281.01
  6. Step 6: Final answer
    x = 399,598.32

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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.