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Finding the Fourth Proportional to 545,762.61, 747,698.22 and 525,308.58

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Solution

The fourth proportional to 545,762.61, 747,698.22 and 525,308.58 is: 719,676.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,762.61 : 747,698.22 = 525,308.58 : x
  2. Step 2: Convert to fraction form
    545,762.61/747,698.22 = 525,308.58/x
  3. Step 3: Cross multiply
    545,762.61x = 747,698.22 × 525,308.58
  4. Step 4: Simplify right side
    545,762.61x = 392,772,290,216.73
  5. Step 5: Solve for x
    x = 392,772,290,216.73/545,762.61
  6. Step 6: Final answer
    x = 719,676.07

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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.