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Finding the Fourth Proportional to 551,017.20, 824,970.60 and 551,017.20

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Solution

The fourth proportional to 551,017.20, 824,970.60 and 551,017.20 is: 824,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,017.20 : 824,970.60 = 551,017.20 : x
  2. Step 2: Convert to fraction form
    551,017.20/824,970.60 = 551,017.20/x
  3. Step 3: Cross multiply
    551,017.20x = 824,970.60 × 551,017.20
  4. Step 4: Simplify right side
    551,017.20x = 454,572,990,094.32
  5. Step 5: Solve for x
    x = 454,572,990,094.32/551,017.20
  6. Step 6: Final answer
    x = 824,970.60

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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.