Home / 824,261.37-1,134,837.04-642,740.37

Finding the Fourth Proportional to 824,261.37, 1,134,837.04 and 642,740.37

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Solution

The fourth proportional to 824,261.37, 1,134,837.04 and 642,740.37 is: 884,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,261.37 : 1,134,837.04 = 642,740.37 : x
  2. Step 2: Convert to fraction form
    824,261.37/1,134,837.04 = 642,740.37/x
  3. Step 3: Cross multiply
    824,261.37x = 1,134,837.04 × 642,740.37
  4. Step 4: Simplify right side
    824,261.37x = 729,405,578,979.31
  5. Step 5: Solve for x
    x = 729,405,578,979.31/824,261.37
  6. Step 6: Final answer
    x = 884,920.25

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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.