Home / 645,519.44-890,598.12-461,602.64

Finding the Fourth Proportional to 645,519.44, 890,598.12 and 461,602.64

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Solution

The fourth proportional to 645,519.44, 890,598.12 and 461,602.64 is: 636,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,519.44 : 890,598.12 = 461,602.64 : x
  2. Step 2: Convert to fraction form
    645,519.44/890,598.12 = 461,602.64/x
  3. Step 3: Cross multiply
    645,519.44x = 890,598.12 × 461,602.64
  4. Step 4: Simplify right side
    645,519.44x = 411,102,443,371.04
  5. Step 5: Solve for x
    x = 411,102,443,371.04/645,519.44
  6. Step 6: Final answer
    x = 636,855.25

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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.