Home / 645,935.41-890,466.96-454,354.21

Finding the Fourth Proportional to 645,935.41, 890,466.96 and 454,354.21

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Solution

The fourth proportional to 645,935.41, 890,466.96 and 454,354.21 is: 626,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,935.41 : 890,466.96 = 454,354.21 : x
  2. Step 2: Convert to fraction form
    645,935.41/890,466.96 = 454,354.21/x
  3. Step 3: Cross multiply
    645,935.41x = 890,466.96 × 454,354.21
  4. Step 4: Simplify right side
    645,935.41x = 404,587,412,141.90
  5. Step 5: Solve for x
    x = 404,587,412,141.90/645,935.41
  6. Step 6: Final answer
    x = 626,358.93

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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.