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Finding the Fourth Proportional to 661,503.80, 992,838.90 and 567,025.40

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Solution

The fourth proportional to 661,503.80, 992,838.90 and 567,025.40 is: 851,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,503.80 : 992,838.90 = 567,025.40 : x
  2. Step 2: Convert to fraction form
    661,503.80/992,838.90 = 567,025.40/x
  3. Step 3: Cross multiply
    661,503.80x = 992,838.90 × 567,025.40
  4. Step 4: Simplify right side
    661,503.80x = 562,964,874,408.06
  5. Step 5: Solve for x
    x = 562,964,874,408.06/661,503.80
  6. Step 6: Final answer
    x = 851,038.01

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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.