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Finding the Fourth Proportional to 553,306.60, 830,057.10 and 198,526.60

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Solution

The fourth proportional to 553,306.60, 830,057.10 and 198,526.60 is: 297,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,306.60 : 830,057.10 = 198,526.60 : x
  2. Step 2: Convert to fraction form
    553,306.60/830,057.10 = 198,526.60/x
  3. Step 3: Cross multiply
    553,306.60x = 830,057.10 × 198,526.60
  4. Step 4: Simplify right side
    553,306.60x = 164,788,413,868.86
  5. Step 5: Solve for x
    x = 164,788,413,868.86/553,306.60
  6. Step 6: Final answer
    x = 297,824.78

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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.