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Finding the Fourth Proportional to 589,322.71, 813,363.96 and 347,665.24

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Solution

The fourth proportional to 589,322.71, 813,363.96 and 347,665.24 is: 479,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,322.71 : 813,363.96 = 347,665.24 : x
  2. Step 2: Convert to fraction form
    589,322.71/813,363.96 = 347,665.24/x
  3. Step 3: Cross multiply
    589,322.71x = 813,363.96 × 347,665.24
  4. Step 4: Simplify right side
    589,322.71x = 282,778,376,360.75
  5. Step 5: Solve for x
    x = 282,778,376,360.75/589,322.71
  6. Step 6: Final answer
    x = 479,836.21

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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.