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Finding the Fourth Proportional to 610,830.92, 843,047.90 and 338,986.16

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Solution

The fourth proportional to 610,830.92, 843,047.90 and 338,986.16 is: 467,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,830.92 : 843,047.90 = 338,986.16 : x
  2. Step 2: Convert to fraction form
    610,830.92/843,047.90 = 338,986.16/x
  3. Step 3: Cross multiply
    610,830.92x = 843,047.90 × 338,986.16
  4. Step 4: Simplify right side
    610,830.92x = 285,781,573,581.67
  5. Step 5: Solve for x
    x = 285,781,573,581.67/610,830.92
  6. Step 6: Final answer
    x = 467,857.08

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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.