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Finding the Fourth Proportional to 674,413.80, 929,610.12 and 456,553.77

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Solution

The fourth proportional to 674,413.80, 929,610.12 and 456,553.77 is: 629,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,413.80 : 929,610.12 = 456,553.77 : x
  2. Step 2: Convert to fraction form
    674,413.80/929,610.12 = 456,553.77/x
  3. Step 3: Cross multiply
    674,413.80x = 929,610.12 × 456,553.77
  4. Step 4: Simplify right side
    674,413.80x = 424,417,004,916.15
  5. Step 5: Solve for x
    x = 424,417,004,916.15/674,413.80
  6. Step 6: Final answer
    x = 629,312.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.