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Finding the Fourth Proportional to 631,064.40, 946,596.60 and 579,454.80

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Solution

The fourth proportional to 631,064.40, 946,596.60 and 579,454.80 is: 869,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,064.40 : 946,596.60 = 579,454.80 : x
  2. Step 2: Convert to fraction form
    631,064.40/946,596.60 = 579,454.80/x
  3. Step 3: Cross multiply
    631,064.40x = 946,596.60 × 579,454.80
  4. Step 4: Simplify right side
    631,064.40x = 548,509,943,533.68
  5. Step 5: Solve for x
    x = 548,509,943,533.68/631,064.40
  6. Step 6: Final answer
    x = 869,182.20

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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.