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Finding the Fourth Proportional to 317,637.34, 438,214.50 and 181,598.20

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Solution

The fourth proportional to 317,637.34, 438,214.50 and 181,598.20 is: 250,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,637.34 : 438,214.50 = 181,598.20 : x
  2. Step 2: Convert to fraction form
    317,637.34/438,214.50 = 181,598.20/x
  3. Step 3: Cross multiply
    317,637.34x = 438,214.50 × 181,598.20
  4. Step 4: Simplify right side
    317,637.34x = 79,578,964,413.90
  5. Step 5: Solve for x
    x = 79,578,964,413.90/317,637.34
  6. Step 6: Final answer
    x = 250,534.03

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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.