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Finding the Fourth Proportional to 611,572.17, 917,544.15 and 190,851.69

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Solution

The fourth proportional to 611,572.17, 917,544.15 and 190,851.69 is: 286,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,572.17 : 917,544.15 = 190,851.69 : x
  2. Step 2: Convert to fraction form
    611,572.17/917,544.15 = 190,851.69/x
  3. Step 3: Cross multiply
    611,572.17x = 917,544.15 × 190,851.69
  4. Step 4: Simplify right side
    611,572.17x = 175,114,851,677.11
  5. Step 5: Solve for x
    x = 175,114,851,677.11/611,572.17
  6. Step 6: Final answer
    x = 286,335.55

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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.