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Finding the Fourth Proportional to 554,678.08, 830,384.16 and 343,637.44

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Solution

The fourth proportional to 554,678.08, 830,384.16 and 343,637.44 is: 514,444.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,678.08 : 830,384.16 = 343,637.44 : x
  2. Step 2: Convert to fraction form
    554,678.08/830,384.16 = 343,637.44/x
  3. Step 3: Cross multiply
    554,678.08x = 830,384.16 × 343,637.44
  4. Step 4: Simplify right side
    554,678.08x = 285,351,086,958.95
  5. Step 5: Solve for x
    x = 285,351,086,958.95/554,678.08
  6. Step 6: Final answer
    x = 514,444.50

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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.