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Finding the Fourth Proportional to 549,890.10, 770,895.90 and 549,890.10

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Solution

The fourth proportional to 549,890.10, 770,895.90 and 549,890.10 is: 770,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,890.10 : 770,895.90 = 549,890.10 : x
  2. Step 2: Convert to fraction form
    549,890.10/770,895.90 = 549,890.10/x
  3. Step 3: Cross multiply
    549,890.10x = 770,895.90 × 549,890.10
  4. Step 4: Simplify right side
    549,890.10x = 423,908,023,540.59
  5. Step 5: Solve for x
    x = 423,908,023,540.59/549,890.10
  6. Step 6: Final answer
    x = 770,895.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.