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Finding the Fourth Proportional to 554,587.69, 765,331.01 and 299,938.88

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Solution

The fourth proportional to 554,587.69, 765,331.01 and 299,938.88 is: 413,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,587.69 : 765,331.01 = 299,938.88 : x
  2. Step 2: Convert to fraction form
    554,587.69/765,331.01 = 299,938.88/x
  3. Step 3: Cross multiply
    554,587.69x = 765,331.01 × 299,938.88
  4. Step 4: Simplify right side
    554,587.69x = 229,552,522,142.01
  5. Step 5: Solve for x
    x = 229,552,522,142.01/554,587.69
  6. Step 6: Final answer
    x = 413,915.65

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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.