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Finding the Fourth Proportional to 615,127.68, 848,716.11 and 360,342.18

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Solution

The fourth proportional to 615,127.68, 848,716.11 and 360,342.18 is: 497,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,127.68 : 848,716.11 = 360,342.18 : x
  2. Step 2: Convert to fraction form
    615,127.68/848,716.11 = 360,342.18/x
  3. Step 3: Cross multiply
    615,127.68x = 848,716.11 × 360,342.18
  4. Step 4: Simplify right side
    615,127.68x = 305,828,213,278.52
  5. Step 5: Solve for x
    x = 305,828,213,278.52/615,127.68
  6. Step 6: Final answer
    x = 497,178.43

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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.