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Finding the Fourth Proportional to 676,709.08, 933,897.66 and 370,786

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Solution

The fourth proportional to 676,709.08, 933,897.66 and 370,786 is: 511,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,709.08 : 933,897.66 = 370,786 : x
  2. Step 2: Convert to fraction form
    676,709.08/933,897.66 = 370,786/x
  3. Step 3: Cross multiply
    676,709.08x = 933,897.66 × 370,786
  4. Step 4: Simplify right side
    676,709.08x = 346,276,177,760.76
  5. Step 5: Solve for x
    x = 346,276,177,760.76/676,709.08
  6. Step 6: Final answer
    x = 511,706.12

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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.