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Finding the Fourth Proportional to 554,432.76, 765,235.80 and 350,353.80

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Solution

The fourth proportional to 554,432.76, 765,235.80 and 350,353.80 is: 483,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,432.76 : 765,235.80 = 350,353.80 : x
  2. Step 2: Convert to fraction form
    554,432.76/765,235.80 = 350,353.80/x
  3. Step 3: Cross multiply
    554,432.76x = 765,235.80 × 350,353.80
  4. Step 4: Simplify right side
    554,432.76x = 268,103,270,426.04
  5. Step 5: Solve for x
    x = 268,103,270,426.04/554,432.76
  6. Step 6: Final answer
    x = 483,563.18

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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.