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Finding the Fourth Proportional to 604,764.84, 907,155.90 and 210,780.84

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Solution

The fourth proportional to 604,764.84, 907,155.90 and 210,780.84 is: 316,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,764.84 : 907,155.90 = 210,780.84 : x
  2. Step 2: Convert to fraction form
    604,764.84/907,155.90 = 210,780.84/x
  3. Step 3: Cross multiply
    604,764.84x = 907,155.90 × 210,780.84
  4. Step 4: Simplify right side
    604,764.84x = 191,211,082,612.96
  5. Step 5: Solve for x
    x = 191,211,082,612.96/604,764.84
  6. Step 6: Final answer
    x = 316,174.27

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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.