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Finding the Fourth Proportional to 411,779.52, 568,174.95 and 258,729.05

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Solution

The fourth proportional to 411,779.52, 568,174.95 and 258,729.05 is: 356,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,779.52 : 568,174.95 = 258,729.05 : x
  2. Step 2: Convert to fraction form
    411,779.52/568,174.95 = 258,729.05/x
  3. Step 3: Cross multiply
    411,779.52x = 568,174.95 × 258,729.05
  4. Step 4: Simplify right side
    411,779.52x = 147,003,362,206.42
  5. Step 5: Solve for x
    x = 147,003,362,206.42/411,779.52
  6. Step 6: Final answer
    x = 356,995.32

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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.