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Finding the Fourth Proportional to 651,704.60, 977,556.90 and 202,421.90

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Solution

The fourth proportional to 651,704.60, 977,556.90 and 202,421.90 is: 303,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,704.60 : 977,556.90 = 202,421.90 : x
  2. Step 2: Convert to fraction form
    651,704.60/977,556.90 = 202,421.90/x
  3. Step 3: Cross multiply
    651,704.60x = 977,556.90 × 202,421.90
  4. Step 4: Simplify right side
    651,704.60x = 197,878,925,056.11
  5. Step 5: Solve for x
    x = 197,878,925,056.11/651,704.60
  6. Step 6: Final answer
    x = 303,632.85

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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.