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Finding the Fourth Proportional to 545,745.36, 747,673.83 and 525,291.18

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Solution

The fourth proportional to 545,745.36, 747,673.83 and 525,291.18 is: 719,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,745.36 : 747,673.83 = 525,291.18 : x
  2. Step 2: Convert to fraction form
    545,745.36/747,673.83 = 525,291.18/x
  3. Step 3: Cross multiply
    545,745.36x = 747,673.83 × 525,291.18
  4. Step 4: Simplify right side
    545,745.36x = 392,746,468,415.82
  5. Step 5: Solve for x
    x = 392,746,468,415.82/545,745.36
  6. Step 6: Final answer
    x = 719,651.50

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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.