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Finding the Fourth Proportional to 528,525.90, 729,360.21 and 295,953.30

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Solution

The fourth proportional to 528,525.90, 729,360.21 and 295,953.30 is: 408,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,525.90 : 729,360.21 = 295,953.30 : x
  2. Step 2: Convert to fraction form
    528,525.90/729,360.21 = 295,953.30/x
  3. Step 3: Cross multiply
    528,525.90x = 729,360.21 × 295,953.30
  4. Step 4: Simplify right side
    528,525.90x = 215,856,561,038.19
  5. Step 5: Solve for x
    x = 215,856,561,038.19/528,525.90
  6. Step 6: Final answer
    x = 408,412.46

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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.