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Finding the Fourth Proportional to 572,730.40, 859,095.60 and 198,753.40

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Solution

The fourth proportional to 572,730.40, 859,095.60 and 198,753.40 is: 298,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,730.40 : 859,095.60 = 198,753.40 : x
  2. Step 2: Convert to fraction form
    572,730.40/859,095.60 = 198,753.40/x
  3. Step 3: Cross multiply
    572,730.40x = 859,095.60 × 198,753.40
  4. Step 4: Simplify right side
    572,730.40x = 170,748,171,425.04
  5. Step 5: Solve for x
    x = 170,748,171,425.04/572,730.40
  6. Step 6: Final answer
    x = 298,130.10

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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.