Home / 638,954.69-881,727.77-366,831.06

Finding the Fourth Proportional to 638,954.69, 881,727.77 and 366,831.06

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Solution

The fourth proportional to 638,954.69, 881,727.77 and 366,831.06 is: 506,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,954.69 : 881,727.77 = 366,831.06 : x
  2. Step 2: Convert to fraction form
    638,954.69/881,727.77 = 366,831.06/x
  3. Step 3: Cross multiply
    638,954.69x = 881,727.77 × 366,831.06
  4. Step 4: Simplify right side
    638,954.69x = 323,445,130,666.38
  5. Step 5: Solve for x
    x = 323,445,130,666.38/638,954.69
  6. Step 6: Final answer
    x = 506,209.81

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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.