Home / 813,831.15-1,122,983.75-446,211.55

Finding the Fourth Proportional to 813,831.15, 1,122,983.75 and 446,211.55

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Solution

The fourth proportional to 813,831.15, 1,122,983.75 and 446,211.55 is: 615,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,831.15 : 1,122,983.75 = 446,211.55 : x
  2. Step 2: Convert to fraction form
    813,831.15/1,122,983.75 = 446,211.55/x
  3. Step 3: Cross multiply
    813,831.15x = 1,122,983.75 × 446,211.55
  4. Step 4: Simplify right side
    813,831.15x = 501,088,319,721.63
  5. Step 5: Solve for x
    x = 501,088,319,721.63/813,831.15
  6. Step 6: Final answer
    x = 615,715.34

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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.