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Finding the Fourth Proportional to 583,855.16, 805,582.76 and 354,406.80

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Solution

The fourth proportional to 583,855.16, 805,582.76 and 354,406.80 is: 488,998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,855.16 : 805,582.76 = 354,406.80 : x
  2. Step 2: Convert to fraction form
    583,855.16/805,582.76 = 354,406.80/x
  3. Step 3: Cross multiply
    583,855.16x = 805,582.76 × 354,406.80
  4. Step 4: Simplify right side
    583,855.16x = 285,504,008,106.77
  5. Step 5: Solve for x
    x = 285,504,008,106.77/583,855.16
  6. Step 6: Final answer
    x = 488,998.00

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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.