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Finding the Fourth Proportional to 936,133.40, 1,404,987.83 and 877,084.40

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Solution

The fourth proportional to 936,133.40, 1,404,987.83 and 877,084.40 is: 1,316,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,133.40 : 1,404,987.83 = 877,084.40 : x
  2. Step 2: Convert to fraction form
    936,133.40/1,404,987.83 = 877,084.40/x
  3. Step 3: Cross multiply
    936,133.40x = 1,404,987.83 × 877,084.40
  4. Step 4: Simplify right side
    936,133.40x = 1,232,292,907,882.85
  5. Step 5: Solve for x
    x = 1,232,292,907,882.85/936,133.40
  6. Step 6: Final answer
    x = 1,316,364.64

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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.