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Finding the Fourth Proportional to 407,715.60, 611,354.70 and 170,790.60

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Solution

The fourth proportional to 407,715.60, 611,354.70 and 170,790.60 is: 256,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,715.60 : 611,354.70 = 170,790.60 : x
  2. Step 2: Convert to fraction form
    407,715.60/611,354.70 = 170,790.60/x
  3. Step 3: Cross multiply
    407,715.60x = 611,354.70 × 170,790.60
  4. Step 4: Simplify right side
    407,715.60x = 104,413,636,025.82
  5. Step 5: Solve for x
    x = 104,413,636,025.82/407,715.60
  6. Step 6: Final answer
    x = 256,094.29

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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.