Home / 651,633.70-977,450.55-402,456.10

Finding the Fourth Proportional to 651,633.70, 977,450.55 and 402,456.10

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Solution

The fourth proportional to 651,633.70, 977,450.55 and 402,456.10 is: 603,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,633.70 : 977,450.55 = 402,456.10 : x
  2. Step 2: Convert to fraction form
    651,633.70/977,450.55 = 402,456.10/x
  3. Step 3: Cross multiply
    651,633.70x = 977,450.55 × 402,456.10
  4. Step 4: Simplify right side
    651,633.70x = 393,380,936,295.86
  5. Step 5: Solve for x
    x = 393,380,936,295.86/651,633.70
  6. Step 6: Final answer
    x = 603,684.15

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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.