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Finding the Fourth Proportional to 865,113.60, 1,185,185.82 and 832,768.74

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Solution

The fourth proportional to 865,113.60, 1,185,185.82 and 832,768.74 is: 1,140,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,113.60 : 1,185,185.82 = 832,768.74 : x
  2. Step 2: Convert to fraction form
    865,113.60/1,185,185.82 = 832,768.74/x
  3. Step 3: Cross multiply
    865,113.60x = 1,185,185.82 × 832,768.74
  4. Step 4: Simplify right side
    865,113.60x = 986,985,701,987.27
  5. Step 5: Solve for x
    x = 986,985,701,987.27/865,113.60
  6. Step 6: Final answer
    x = 1,140,874.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.