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Finding the Fourth Proportional to 630,710.37, 946,065.56 and 157,395.74

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Solution

The fourth proportional to 630,710.37, 946,065.56 and 157,395.74 is: 236,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,710.37 : 946,065.56 = 157,395.74 : x
  2. Step 2: Convert to fraction form
    630,710.37/946,065.56 = 157,395.74/x
  3. Step 3: Cross multiply
    630,710.37x = 946,065.56 × 157,395.74
  4. Step 4: Simplify right side
    630,710.37x = 148,906,683,387.41
  5. Step 5: Solve for x
    x = 148,906,683,387.41/630,710.37
  6. Step 6: Final answer
    x = 236,093.60

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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.