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Finding the Fourth Proportional to 619,383.60, 929,075.40 and 619,383.60

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Solution

The fourth proportional to 619,383.60, 929,075.40 and 619,383.60 is: 929,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,383.60 : 929,075.40 = 619,383.60 : x
  2. Step 2: Convert to fraction form
    619,383.60/929,075.40 = 619,383.60/x
  3. Step 3: Cross multiply
    619,383.60x = 929,075.40 × 619,383.60
  4. Step 4: Simplify right side
    619,383.60x = 575,454,065,923.44
  5. Step 5: Solve for x
    x = 575,454,065,923.44/619,383.60
  6. Step 6: Final answer
    x = 929,075.40

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