Home / 854,037.34-1,178,688.72-491,453.80

Finding the Fourth Proportional to 854,037.34, 1,178,688.72 and 491,453.80

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Solution

The fourth proportional to 854,037.34, 1,178,688.72 and 491,453.80 is: 678,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,037.34 : 1,178,688.72 = 491,453.80 : x
  2. Step 2: Convert to fraction form
    854,037.34/1,178,688.72 = 491,453.80/x
  3. Step 3: Cross multiply
    854,037.34x = 1,178,688.72 × 491,453.80
  4. Step 4: Simplify right side
    854,037.34x = 579,271,050,461.14
  5. Step 5: Solve for x
    x = 579,271,050,461.14/854,037.34
  6. Step 6: Final answer
    x = 678,273.68

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Double scale
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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.