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Finding the Fourth Proportional to 713,470.40, 1,070,205.60 and 292,529.60

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Solution

The fourth proportional to 713,470.40, 1,070,205.60 and 292,529.60 is: 438,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,470.40 : 1,070,205.60 = 292,529.60 : x
  2. Step 2: Convert to fraction form
    713,470.40/1,070,205.60 = 292,529.60/x
  3. Step 3: Cross multiply
    713,470.40x = 1,070,205.60 × 292,529.60
  4. Step 4: Simplify right side
    713,470.40x = 313,066,816,085.76
  5. Step 5: Solve for x
    x = 313,066,816,085.76/713,470.40
  6. Step 6: Final answer
    x = 438,794.40

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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.