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Finding the Fourth Proportional to 886,813.16, 1,330,653.12 and 549,763.66

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Solution

The fourth proportional to 886,813.16, 1,330,653.12 and 549,763.66 is: 824,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,813.16 : 1,330,653.12 = 549,763.66 : x
  2. Step 2: Convert to fraction form
    886,813.16/1,330,653.12 = 549,763.66/x
  3. Step 3: Cross multiply
    886,813.16x = 1,330,653.12 × 549,763.66
  4. Step 4: Simplify right side
    886,813.16x = 731,544,721,558.40
  5. Step 5: Solve for x
    x = 731,544,721,558.40/886,813.16
  6. Step 6: Final answer
    x = 824,914.15

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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.