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Finding the Fourth Proportional to 615,299.86, 848,877.06 and 385,457.14

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Solution

The fourth proportional to 615,299.86, 848,877.06 and 385,457.14 is: 531,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,299.86 : 848,877.06 = 385,457.14 : x
  2. Step 2: Convert to fraction form
    615,299.86/848,877.06 = 385,457.14/x
  3. Step 3: Cross multiply
    615,299.86x = 848,877.06 × 385,457.14
  4. Step 4: Simplify right side
    615,299.86x = 327,205,723,759.21
  5. Step 5: Solve for x
    x = 327,205,723,759.21/615,299.86
  6. Step 6: Final answer
    x = 531,782.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.