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Finding the Fourth Proportional to 580,636.76, 870,475.62 and 256,193.88

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Solution

The fourth proportional to 580,636.76, 870,475.62 and 256,193.88 is: 384,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,636.76 : 870,475.62 = 256,193.88 : x
  2. Step 2: Convert to fraction form
    580,636.76/870,475.62 = 256,193.88/x
  3. Step 3: Cross multiply
    580,636.76x = 870,475.62 × 256,193.88
  4. Step 4: Simplify right side
    580,636.76x = 223,010,529,126.07
  5. Step 5: Solve for x
    x = 223,010,529,126.07/580,636.76
  6. Step 6: Final answer
    x = 384,079.25

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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.