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Finding the Fourth Proportional to 531,532.72, 733,692.90 and 316,740.16

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Solution

The fourth proportional to 531,532.72, 733,692.90 and 316,740.16 is: 437,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,532.72 : 733,692.90 = 316,740.16 : x
  2. Step 2: Convert to fraction form
    531,532.72/733,692.90 = 316,740.16/x
  3. Step 3: Cross multiply
    531,532.72x = 733,692.90 × 316,740.16
  4. Step 4: Simplify right side
    531,532.72x = 232,390,006,536.86
  5. Step 5: Solve for x
    x = 232,390,006,536.86/531,532.72
  6. Step 6: Final answer
    x = 437,207.34

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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.