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Finding the Fourth Proportional to 526,073.81, 725,981.40 and 284,356.37

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Solution

The fourth proportional to 526,073.81, 725,981.40 and 284,356.37 is: 392,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,073.81 : 725,981.40 = 284,356.37 : x
  2. Step 2: Convert to fraction form
    526,073.81/725,981.40 = 284,356.37/x
  3. Step 3: Cross multiply
    526,073.81x = 725,981.40 × 284,356.37
  4. Step 4: Simplify right side
    526,073.81x = 206,437,437,406.47
  5. Step 5: Solve for x
    x = 206,437,437,406.47/526,073.81
  6. Step 6: Final answer
    x = 392,411.55

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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.