Home / 639,396.48-881,146.25-457,792.97

Finding the Fourth Proportional to 639,396.48, 881,146.25 and 457,792.97

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Solution

The fourth proportional to 639,396.48, 881,146.25 and 457,792.97 is: 630,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,396.48 : 881,146.25 = 457,792.97 : x
  2. Step 2: Convert to fraction form
    639,396.48/881,146.25 = 457,792.97/x
  3. Step 3: Cross multiply
    639,396.48x = 881,146.25 × 457,792.97
  4. Step 4: Simplify right side
    639,396.48x = 403,382,553,813.89
  5. Step 5: Solve for x
    x = 403,382,553,813.89/639,396.48
  6. Step 6: Final answer
    x = 630,880.16

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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.