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Finding the Fourth Proportional to 685,066.56, 946,295.40 and 525,888.60

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Solution

The fourth proportional to 685,066.56, 946,295.40 and 525,888.60 is: 726,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,066.56 : 946,295.40 = 525,888.60 : x
  2. Step 2: Convert to fraction form
    685,066.56/946,295.40 = 525,888.60/x
  3. Step 3: Cross multiply
    685,066.56x = 946,295.40 × 525,888.60
  4. Step 4: Simplify right side
    685,066.56x = 497,645,963,092.44
  5. Step 5: Solve for x
    x = 497,645,963,092.44/685,066.56
  6. Step 6: Final answer
    x = 726,419.87

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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.