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Finding the Fourth Proportional to 569,869.70, 854,113.35 and 253,991.30

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Solution

The fourth proportional to 569,869.70, 854,113.35 and 253,991.30 is: 380,678.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,869.70 : 854,113.35 = 253,991.30 : x
  2. Step 2: Convert to fraction form
    569,869.70/854,113.35 = 253,991.30/x
  3. Step 3: Cross multiply
    569,869.70x = 854,113.35 × 253,991.30
  4. Step 4: Simplify right side
    569,869.70x = 216,937,360,113.86
  5. Step 5: Solve for x
    x = 216,937,360,113.86/569,869.70
  6. Step 6: Final answer
    x = 380,678.88

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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.