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Finding the Fourth Proportional to 685,061.28, 946,288.17 and 525,883.32

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Solution

The fourth proportional to 685,061.28, 946,288.17 and 525,883.32 is: 726,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,061.28 : 946,288.17 = 525,883.32 : x
  2. Step 2: Convert to fraction form
    685,061.28/946,288.17 = 525,883.32/x
  3. Step 3: Cross multiply
    685,061.28x = 946,288.17 × 525,883.32
  4. Step 4: Simplify right side
    685,061.28x = 497,637,164,516.32
  5. Step 5: Solve for x
    x = 497,637,164,516.32/685,061.28
  6. Step 6: Final answer
    x = 726,412.63

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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.