Home / 686,109.75-946,831.46-417,837.75

Finding the Fourth Proportional to 686,109.75, 946,831.46 and 417,837.75

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Solution

The fourth proportional to 686,109.75, 946,831.46 and 417,837.75 is: 576,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,109.75 : 946,831.46 = 417,837.75 : x
  2. Step 2: Convert to fraction form
    686,109.75/946,831.46 = 417,837.75/x
  3. Step 3: Cross multiply
    686,109.75x = 946,831.46 × 417,837.75
  4. Step 4: Simplify right side
    686,109.75x = 395,621,926,875.62
  5. Step 5: Solve for x
    x = 395,621,926,875.62/686,109.75
  6. Step 6: Final answer
    x = 576,616.10

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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.