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Finding the Fourth Proportional to 907,661.80, 1,361,492.70 and 375,564.70

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Solution

The fourth proportional to 907,661.80, 1,361,492.70 and 375,564.70 is: 563,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,661.80 : 1,361,492.70 = 375,564.70 : x
  2. Step 2: Convert to fraction form
    907,661.80/1,361,492.70 = 375,564.70/x
  3. Step 3: Cross multiply
    907,661.80x = 1,361,492.70 × 375,564.70
  4. Step 4: Simplify right side
    907,661.80x = 511,328,597,427.69
  5. Step 5: Solve for x
    x = 511,328,597,427.69/907,661.80
  6. Step 6: Final answer
    x = 563,347.05

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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.