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Finding the Fourth Proportional to 702,963.80, 1,054,445.70 and 675,407.60

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Solution

The fourth proportional to 702,963.80, 1,054,445.70 and 675,407.60 is: 1,013,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,963.80 : 1,054,445.70 = 675,407.60 : x
  2. Step 2: Convert to fraction form
    702,963.80/1,054,445.70 = 675,407.60/x
  3. Step 3: Cross multiply
    702,963.80x = 1,054,445.70 × 675,407.60
  4. Step 4: Simplify right side
    702,963.80x = 712,180,639,567.32
  5. Step 5: Solve for x
    x = 712,180,639,567.32/702,963.80
  6. Step 6: Final answer
    x = 1,013,111.40

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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.