Home / 649,434.30-974,151.45-295,140.30

Finding the Fourth Proportional to 649,434.30, 974,151.45 and 295,140.30

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Solution

The fourth proportional to 649,434.30, 974,151.45 and 295,140.30 is: 442,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,434.30 : 974,151.45 = 295,140.30 : x
  2. Step 2: Convert to fraction form
    649,434.30/974,151.45 = 295,140.30/x
  3. Step 3: Cross multiply
    649,434.30x = 974,151.45 × 295,140.30
  4. Step 4: Simplify right side
    649,434.30x = 287,511,351,198.44
  5. Step 5: Solve for x
    x = 287,511,351,198.44/649,434.30
  6. Step 6: Final answer
    x = 442,710.45

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Half scale
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Double scale
Find fourth proportional to 649,435.30, 974,152.95 and 295,141.30
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.