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Finding the Fourth Proportional to 626,583.58, 864,686.02 and 340,103.60

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Solution

The fourth proportional to 626,583.58, 864,686.02 and 340,103.60 is: 469,343.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,583.58 : 864,686.02 = 340,103.60 : x
  2. Step 2: Convert to fraction form
    626,583.58/864,686.02 = 340,103.60/x
  3. Step 3: Cross multiply
    626,583.58x = 864,686.02 × 340,103.60
  4. Step 4: Simplify right side
    626,583.58x = 294,082,828,271.67
  5. Step 5: Solve for x
    x = 294,082,828,271.67/626,583.58
  6. Step 6: Final answer
    x = 469,343.34

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.