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Finding the Fourth Proportional to 604,561.42, 906,154.64 and 315,928.04

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Solution

The fourth proportional to 604,561.42, 906,154.64 and 315,928.04 is: 473,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,561.42 : 906,154.64 = 315,928.04 : x
  2. Step 2: Convert to fraction form
    604,561.42/906,154.64 = 315,928.04/x
  3. Step 3: Cross multiply
    604,561.42x = 906,154.64 × 315,928.04
  4. Step 4: Simplify right side
    604,561.42x = 286,279,661,960.37
  5. Step 5: Solve for x
    x = 286,279,661,960.37/604,561.42
  6. Step 6: Final answer
    x = 473,532.80

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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.