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Finding the Fourth Proportional to 685,058.91, 946,284.89 and 525,880.95

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Solution

The fourth proportional to 685,058.91, 946,284.89 and 525,880.95 is: 726,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,058.91 : 946,284.89 = 525,880.95 : x
  2. Step 2: Convert to fraction form
    685,058.91/946,284.89 = 525,880.95/x
  3. Step 3: Cross multiply
    685,058.91x = 946,284.89 × 525,880.95
  4. Step 4: Simplify right side
    685,058.91x = 497,633,196,923.85
  5. Step 5: Solve for x
    x = 497,633,196,923.85/685,058.91
  6. Step 6: Final answer
    x = 726,409.35

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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.