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Finding the Fourth Proportional to 458,935.94, 688,248.66 and 174,558.98

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Solution

The fourth proportional to 458,935.94, 688,248.66 and 174,558.98 is: 261,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,935.94 : 688,248.66 = 174,558.98 : x
  2. Step 2: Convert to fraction form
    458,935.94/688,248.66 = 174,558.98/x
  3. Step 3: Cross multiply
    458,935.94x = 688,248.66 × 174,558.98
  4. Step 4: Simplify right side
    458,935.94x = 120,139,984,075.97
  5. Step 5: Solve for x
    x = 120,139,984,075.97/458,935.94
  6. Step 6: Final answer
    x = 261,779.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.