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Finding the Fourth Proportional to 523,636.40, 785,566.20 and 299,104.40

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Solution

The fourth proportional to 523,636.40, 785,566.20 and 299,104.40 is: 448,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,636.40 : 785,566.20 = 299,104.40 : x
  2. Step 2: Convert to fraction form
    523,636.40/785,566.20 = 299,104.40/x
  3. Step 3: Cross multiply
    523,636.40x = 785,566.20 × 299,104.40
  4. Step 4: Simplify right side
    523,636.40x = 234,966,306,911.28
  5. Step 5: Solve for x
    x = 234,966,306,911.28/523,636.40
  6. Step 6: Final answer
    x = 448,720.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.