Home / 638,831.95-881,586.45-366,917.47

Finding the Fourth Proportional to 638,831.95, 881,586.45 and 366,917.47

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Solution

The fourth proportional to 638,831.95, 881,586.45 and 366,917.47 is: 506,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,831.95 : 881,586.45 = 366,917.47 : x
  2. Step 2: Convert to fraction form
    638,831.95/881,586.45 = 366,917.47/x
  3. Step 3: Cross multiply
    638,831.95x = 881,586.45 × 366,917.47
  4. Step 4: Simplify right side
    638,831.95x = 323,469,467,616.32
  5. Step 5: Solve for x
    x = 323,469,467,616.32/638,831.95
  6. Step 6: Final answer
    x = 506,345.16

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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.