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Finding the Fourth Proportional to 615,411.24, 848,597.96 and 400,152.12

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Solution

The fourth proportional to 615,411.24, 848,597.96 and 400,152.12 is: 551,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,411.24 : 848,597.96 = 400,152.12 : x
  2. Step 2: Convert to fraction form
    615,411.24/848,597.96 = 400,152.12/x
  3. Step 3: Cross multiply
    615,411.24x = 848,597.96 × 400,152.12
  4. Step 4: Simplify right side
    615,411.24x = 339,568,272,721.68
  5. Step 5: Solve for x
    x = 339,568,272,721.68/615,411.24
  6. Step 6: Final answer
    x = 551,774.57

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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.