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Finding the Fourth Proportional to 615,109.96, 848,851.86 and 346,837.96

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Solution

The fourth proportional to 615,109.96, 848,851.86 and 346,837.96 is: 478,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,109.96 : 848,851.86 = 346,837.96 : x
  2. Step 2: Convert to fraction form
    615,109.96/848,851.86 = 346,837.96/x
  3. Step 3: Cross multiply
    615,109.96x = 848,851.86 × 346,837.96
  4. Step 4: Simplify right side
    615,109.96x = 294,414,047,464.61
  5. Step 5: Solve for x
    x = 294,414,047,464.61/615,109.96
  6. Step 6: Final answer
    x = 478,636.45

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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.