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Finding the Fourth Proportional to 423,098.32, 633,675.48 and 355,680.40

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Solution

The fourth proportional to 423,098.32, 633,675.48 and 355,680.40 is: 532,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,098.32 : 633,675.48 = 355,680.40 : x
  2. Step 2: Convert to fraction form
    423,098.32/633,675.48 = 355,680.40/x
  3. Step 3: Cross multiply
    423,098.32x = 633,675.48 × 355,680.40
  4. Step 4: Simplify right side
    423,098.32x = 225,385,948,196.59
  5. Step 5: Solve for x
    x = 225,385,948,196.59/423,098.32
  6. Step 6: Final answer
    x = 532,703.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.