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Finding the Fourth Proportional to 976,817.10, 1,465,225.65 and 889,725.90

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Solution

The fourth proportional to 976,817.10, 1,465,225.65 and 889,725.90 is: 1,334,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,817.10 : 1,465,225.65 = 889,725.90 : x
  2. Step 2: Convert to fraction form
    976,817.10/1,465,225.65 = 889,725.90/x
  3. Step 3: Cross multiply
    976,817.10x = 1,465,225.65 × 889,725.90
  4. Step 4: Simplify right side
    976,817.10x = 1,303,649,210,149.34
  5. Step 5: Solve for x
    x = 1,303,649,210,149.34/976,817.10
  6. Step 6: Final answer
    x = 1,334,588.85

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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.