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Finding the Fourth Proportional to 545,745.96, 747,674.67 and 525,291.79

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Solution

The fourth proportional to 545,745.96, 747,674.67 and 525,291.79 is: 719,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,745.96 : 747,674.67 = 525,291.79 : x
  2. Step 2: Convert to fraction form
    545,745.96/747,674.67 = 525,291.79/x
  3. Step 3: Cross multiply
    545,745.96x = 747,674.67 × 525,291.79
  4. Step 4: Simplify right side
    545,745.96x = 392,747,365,741.96
  5. Step 5: Solve for x
    x = 392,747,365,741.96/545,745.96
  6. Step 6: Final answer
    x = 719,652.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.