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Finding the Fourth Proportional to 487,911.63, 732,539.06 and 248,187.76

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Solution

The fourth proportional to 487,911.63, 732,539.06 and 248,187.76 is: 372,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,911.63 : 732,539.06 = 248,187.76 : x
  2. Step 2: Convert to fraction form
    487,911.63/732,539.06 = 248,187.76/x
  3. Step 3: Cross multiply
    487,911.63x = 732,539.06 × 248,187.76
  4. Step 4: Simplify right side
    487,911.63x = 181,807,228,413.91
  5. Step 5: Solve for x
    x = 181,807,228,413.91/487,911.63
  6. Step 6: Final answer
    x = 372,623.27

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1.5x scale

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.