Home / 528,546.07-729,395.49-286,828.57

Finding the Fourth Proportional to 528,546.07, 729,395.49 and 286,828.57

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Solution

The fourth proportional to 528,546.07, 729,395.49 and 286,828.57 is: 395,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,546.07 : 729,395.49 = 286,828.57 : x
  2. Step 2: Convert to fraction form
    528,546.07/729,395.49 = 286,828.57/x
  3. Step 3: Cross multiply
    528,546.07x = 729,395.49 × 286,828.57
  4. Step 4: Simplify right side
    528,546.07x = 209,211,465,361.15
  5. Step 5: Solve for x
    x = 209,211,465,361.15/528,546.07
  6. Step 6: Final answer
    x = 395,824.46

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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.