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Finding the Fourth Proportional to 876,075.80, 1,314,113.70 and 767,600.60

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Solution

The fourth proportional to 876,075.80, 1,314,113.70 and 767,600.60 is: 1,151,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,075.80 : 1,314,113.70 = 767,600.60 : x
  2. Step 2: Convert to fraction form
    876,075.80/1,314,113.70 = 767,600.60/x
  3. Step 3: Cross multiply
    876,075.80x = 1,314,113.70 × 767,600.60
  4. Step 4: Simplify right side
    876,075.80x = 1,008,714,464,588.22
  5. Step 5: Solve for x
    x = 1,008,714,464,588.22/876,075.80
  6. Step 6: Final answer
    x = 1,151,400.90

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Double scale
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Similar ratio
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1.5x scale

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.