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Finding the Fourth Proportional to 671,146.56, 926,157.60 and 369,334.08

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Solution

The fourth proportional to 671,146.56, 926,157.60 and 369,334.08 is: 509,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,146.56 : 926,157.60 = 369,334.08 : x
  2. Step 2: Convert to fraction form
    671,146.56/926,157.60 = 369,334.08/x
  3. Step 3: Cross multiply
    671,146.56x = 926,157.60 × 369,334.08
  4. Step 4: Simplify right side
    671,146.56x = 342,061,565,131.01
  5. Step 5: Solve for x
    x = 342,061,565,131.01/671,146.56
  6. Step 6: Final answer
    x = 509,667.46

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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.