Home / 528,669.24-729,568.80-286,953.90

Finding the Fourth Proportional to 528,669.24, 729,568.80 and 286,953.90

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Solution

The fourth proportional to 528,669.24, 729,568.80 and 286,953.90 is: 395,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,669.24 : 729,568.80 = 286,953.90 : x
  2. Step 2: Convert to fraction form
    528,669.24/729,568.80 = 286,953.90/x
  3. Step 3: Cross multiply
    528,669.24x = 729,568.80 × 286,953.90
  4. Step 4: Simplify right side
    528,669.24x = 209,352,612,478.32
  5. Step 5: Solve for x
    x = 209,352,612,478.32/528,669.24
  6. Step 6: Final answer
    x = 395,999.23

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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.