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Finding the Fourth Proportional to 924,910.65, 1,386,525.11 and 355,928.90

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Solution

The fourth proportional to 924,910.65, 1,386,525.11 and 355,928.90 is: 533,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,910.65 : 1,386,525.11 = 355,928.90 : x
  2. Step 2: Convert to fraction form
    924,910.65/1,386,525.11 = 355,928.90/x
  3. Step 3: Cross multiply
    924,910.65x = 1,386,525.11 × 355,928.90
  4. Step 4: Simplify right side
    924,910.65x = 493,504,348,512.41
  5. Step 5: Solve for x
    x = 493,504,348,512.41/924,910.65
  6. Step 6: Final answer
    x = 533,569.75

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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.