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Finding the Fourth Proportional to 713,490.86, 984,648.14 and 426,955.79

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Solution

The fourth proportional to 713,490.86, 984,648.14 and 426,955.79 is: 589,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,490.86 : 984,648.14 = 426,955.79 : x
  2. Step 2: Convert to fraction form
    713,490.86/984,648.14 = 426,955.79/x
  3. Step 3: Cross multiply
    713,490.86x = 984,648.14 × 426,955.79
  4. Step 4: Simplify right side
    713,490.86x = 420,401,217,427.71
  5. Step 5: Solve for x
    x = 420,401,217,427.71/713,490.86
  6. Step 6: Final answer
    x = 589,217.39

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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.