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Finding the Fourth Proportional to 827,085.60, 1,160,281.80 and 827,085.60

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Solution

The fourth proportional to 827,085.60, 1,160,281.80 and 827,085.60 is: 1,160,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,085.60 : 1,160,281.80 = 827,085.60 : x
  2. Step 2: Convert to fraction form
    827,085.60/1,160,281.80 = 827,085.60/x
  3. Step 3: Cross multiply
    827,085.60x = 1,160,281.80 × 827,085.60
  4. Step 4: Simplify right side
    827,085.60x = 959,652,368,722.08
  5. Step 5: Solve for x
    x = 959,652,368,722.08/827,085.60
  6. Step 6: Final answer
    x = 1,160,281.80

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1.5x scale

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.