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Finding the Fourth Proportional to 471,779.18, 707,078.27 and 371,543.49

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Solution

The fourth proportional to 471,779.18, 707,078.27 and 371,543.49 is: 556,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,779.18 : 707,078.27 = 371,543.49 : x
  2. Step 2: Convert to fraction form
    471,779.18/707,078.27 = 371,543.49/x
  3. Step 3: Cross multiply
    471,779.18x = 707,078.27 × 371,543.49
  4. Step 4: Simplify right side
    471,779.18x = 262,710,326,281.25
  5. Step 5: Solve for x
    x = 262,710,326,281.25/471,779.18
  6. Step 6: Final answer
    x = 556,850.20

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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.