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Finding the Fourth Proportional to 589,111.38, 812,832.57 and 347,374.98

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Solution

The fourth proportional to 589,111.38, 812,832.57 and 347,374.98 is: 479,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,111.38 : 812,832.57 = 347,374.98 : x
  2. Step 2: Convert to fraction form
    589,111.38/812,832.57 = 347,374.98/x
  3. Step 3: Cross multiply
    589,111.38x = 812,832.57 × 347,374.98
  4. Step 4: Simplify right side
    589,111.38x = 282,357,697,747.10
  5. Step 5: Solve for x
    x = 282,357,697,747.10/589,111.38
  6. Step 6: Final answer
    x = 479,294.25

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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.