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Finding the Fourth Proportional to 833,068.80, 1,249,603.20 and 800,409.60

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Solution

The fourth proportional to 833,068.80, 1,249,603.20 and 800,409.60 is: 1,200,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,068.80 : 1,249,603.20 = 800,409.60 : x
  2. Step 2: Convert to fraction form
    833,068.80/1,249,603.20 = 800,409.60/x
  3. Step 3: Cross multiply
    833,068.80x = 1,249,603.20 × 800,409.60
  4. Step 4: Simplify right side
    833,068.80x = 1,000,194,397,470.72
  5. Step 5: Solve for x
    x = 1,000,194,397,470.72/833,068.80
  6. Step 6: Final answer
    x = 1,200,614.40

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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.