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Finding the Fourth Proportional to 423,597.80, 584,571.66 and 230,005.40

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Solution

The fourth proportional to 423,597.80, 584,571.66 and 230,005.40 is: 317,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,597.80 : 584,571.66 = 230,005.40 : x
  2. Step 2: Convert to fraction form
    423,597.80/584,571.66 = 230,005.40/x
  3. Step 3: Cross multiply
    423,597.80x = 584,571.66 × 230,005.40
  4. Step 4: Simplify right side
    423,597.80x = 134,454,635,564.11
  5. Step 5: Solve for x
    x = 134,454,635,564.11/423,597.80
  6. Step 6: Final answer
    x = 317,411.08

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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.