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Finding the Fourth Proportional to 868,354.61, 1,300,957.22 and 849,458.93

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Solution

The fourth proportional to 868,354.61, 1,300,957.22 and 849,458.93 is: 1,272,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,354.61 : 1,300,957.22 = 849,458.93 : x
  2. Step 2: Convert to fraction form
    868,354.61/1,300,957.22 = 849,458.93/x
  3. Step 3: Cross multiply
    868,354.61x = 1,300,957.22 × 849,458.93
  4. Step 4: Simplify right side
    868,354.61x = 1,105,109,723,829.68
  5. Step 5: Solve for x
    x = 1,105,109,723,829.68/868,354.61
  6. Step 6: Final answer
    x = 1,272,647.96

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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.