Home / 840,780.07-1,160,301.00-458,831.45

Finding the Fourth Proportional to 840,780.07, 1,160,301.00 and 458,831.45

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Solution

The fourth proportional to 840,780.07, 1,160,301.00 and 458,831.45 is: 633,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,780.07 : 1,160,301.00 = 458,831.45 : x
  2. Step 2: Convert to fraction form
    840,780.07/1,160,301.00 = 458,831.45/x
  3. Step 3: Cross multiply
    840,780.07x = 1,160,301.00 × 458,831.45
  4. Step 4: Simplify right side
    840,780.07x = 532,382,594,887.82
  5. Step 5: Solve for x
    x = 532,382,594,887.82/840,780.07
  6. Step 6: Final answer
    x = 633,200.78

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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.