Home / 870,028.70-1,305,043.05-565,598.30

Finding the Fourth Proportional to 870,028.70, 1,305,043.05 and 565,598.30

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Solution

The fourth proportional to 870,028.70, 1,305,043.05 and 565,598.30 is: 848,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,028.70 : 1,305,043.05 = 565,598.30 : x
  2. Step 2: Convert to fraction form
    870,028.70/1,305,043.05 = 565,598.30/x
  3. Step 3: Cross multiply
    870,028.70x = 1,305,043.05 × 565,598.30
  4. Step 4: Simplify right side
    870,028.70x = 738,130,130,506.82
  5. Step 5: Solve for x
    x = 738,130,130,506.82/870,028.70
  6. Step 6: Final answer
    x = 848,397.45

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Half scale
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Double scale
Find fourth proportional to 870,029.70, 1,305,044.55 and 565,599.30
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.