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Finding the Fourth Proportional to 606,923.20, 910,384.80 and 291,217.60

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Solution

The fourth proportional to 606,923.20, 910,384.80 and 291,217.60 is: 436,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,923.20 : 910,384.80 = 291,217.60 : x
  2. Step 2: Convert to fraction form
    606,923.20/910,384.80 = 291,217.60/x
  3. Step 3: Cross multiply
    606,923.20x = 910,384.80 × 291,217.60
  4. Step 4: Simplify right side
    606,923.20x = 265,120,076,532.48
  5. Step 5: Solve for x
    x = 265,120,076,532.48/606,923.20
  6. Step 6: Final answer
    x = 436,826.40

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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.