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Finding the Fourth Proportional to 589,253.78, 813,268.05 and 347,595.74

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Solution

The fourth proportional to 589,253.78, 813,268.05 and 347,595.74 is: 479,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,253.78 : 813,268.05 = 347,595.74 : x
  2. Step 2: Convert to fraction form
    589,253.78/813,268.05 = 347,595.74/x
  3. Step 3: Cross multiply
    589,253.78x = 813,268.05 × 347,595.74
  4. Step 4: Simplify right side
    589,253.78x = 282,688,509,658.11
  5. Step 5: Solve for x
    x = 282,688,509,658.11/589,253.78
  6. Step 6: Final answer
    x = 479,739.84

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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.