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Finding the Fourth Proportional to 863,084.55, 1,191,567.03 and 767,326.30

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Solution

The fourth proportional to 863,084.55, 1,191,567.03 and 767,326.30 is: 1,059,364.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,084.55 : 1,191,567.03 = 767,326.30 : x
  2. Step 2: Convert to fraction form
    863,084.55/1,191,567.03 = 767,326.30/x
  3. Step 3: Cross multiply
    863,084.55x = 1,191,567.03 × 767,326.30
  4. Step 4: Simplify right side
    863,084.55x = 914,320,718,791.71
  5. Step 5: Solve for x
    x = 914,320,718,791.71/863,084.55
  6. Step 6: Final answer
    x = 1,059,364.02

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Double scale
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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.