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Finding the Fourth Proportional to 604,386.66, 906,612.33 and 155,111.40

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Solution

The fourth proportional to 604,386.66, 906,612.33 and 155,111.40 is: 232,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,386.66 : 906,612.33 = 155,111.40 : x
  2. Step 2: Convert to fraction form
    604,386.66/906,612.33 = 155,111.40/x
  3. Step 3: Cross multiply
    604,386.66x = 906,612.33 × 155,111.40
  4. Step 4: Simplify right side
    604,386.66x = 140,625,907,763.56
  5. Step 5: Solve for x
    x = 140,625,907,763.56/604,386.66
  6. Step 6: Final answer
    x = 232,675.40

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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.