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Finding the Fourth Proportional to 423,285.68, 584,141.28 and 232,316.88

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Solution

The fourth proportional to 423,285.68, 584,141.28 and 232,316.88 is: 320,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,285.68 : 584,141.28 = 232,316.88 : x
  2. Step 2: Convert to fraction form
    423,285.68/584,141.28 = 232,316.88/x
  3. Step 3: Cross multiply
    423,285.68x = 584,141.28 × 232,316.88
  4. Step 4: Simplify right side
    423,285.68x = 135,705,879,648.81
  5. Step 5: Solve for x
    x = 135,705,879,648.81/423,285.68
  6. Step 6: Final answer
    x = 320,601.16

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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.