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Finding the Fourth Proportional to 604,987.03, 907,474.35 and 155,706.15

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Solution

The fourth proportional to 604,987.03, 907,474.35 and 155,706.15 is: 233,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,987.03 : 907,474.35 = 155,706.15 : x
  2. Step 2: Convert to fraction form
    604,987.03/907,474.35 = 155,706.15/x
  3. Step 3: Cross multiply
    604,987.03x = 907,474.35 × 155,706.15
  4. Step 4: Simplify right side
    604,987.03x = 141,299,336,144.64
  5. Step 5: Solve for x
    x = 141,299,336,144.64/604,987.03
  6. Step 6: Final answer
    x = 233,557.63

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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.