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Finding the Fourth Proportional to 644,582.40, 966,873.60 and 572,697.60

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Solution

The fourth proportional to 644,582.40, 966,873.60 and 572,697.60 is: 859,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,582.40 : 966,873.60 = 572,697.60 : x
  2. Step 2: Convert to fraction form
    644,582.40/966,873.60 = 572,697.60/x
  3. Step 3: Cross multiply
    644,582.40x = 966,873.60 × 572,697.60
  4. Step 4: Simplify right side
    644,582.40x = 553,726,190,223.36
  5. Step 5: Solve for x
    x = 553,726,190,223.36/644,582.40
  6. Step 6: Final answer
    x = 859,046.40

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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.