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Finding the Fourth Proportional to 713,751.40, 1,070,627.10 and 292,810.60

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Solution

The fourth proportional to 713,751.40, 1,070,627.10 and 292,810.60 is: 439,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,751.40 : 1,070,627.10 = 292,810.60 : x
  2. Step 2: Convert to fraction form
    713,751.40/1,070,627.10 = 292,810.60/x
  3. Step 3: Cross multiply
    713,751.40x = 1,070,627.10 × 292,810.60
  4. Step 4: Simplify right side
    713,751.40x = 313,490,963,527.26
  5. Step 5: Solve for x
    x = 313,490,963,527.26/713,751.40
  6. Step 6: Final answer
    x = 439,215.90

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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.