Home / 528,664.37-729,537.30-286,941.78

Finding the Fourth Proportional to 528,664.37, 729,537.30 and 286,941.78

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Solution

The fourth proportional to 528,664.37, 729,537.30 and 286,941.78 is: 395,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,664.37 : 729,537.30 = 286,941.78 : x
  2. Step 2: Convert to fraction form
    528,664.37/729,537.30 = 286,941.78/x
  3. Step 3: Cross multiply
    528,664.37x = 729,537.30 × 286,941.78
  4. Step 4: Simplify right side
    528,664.37x = 209,334,731,438.39
  5. Step 5: Solve for x
    x = 209,334,731,438.39/528,664.37
  6. Step 6: Final answer
    x = 395,969.06

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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.