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Finding the Fourth Proportional to 709,904.98, 980,705.24 and 614,245.60

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Solution

The fourth proportional to 709,904.98, 980,705.24 and 614,245.60 is: 848,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,904.98 : 980,705.24 = 614,245.60 : x
  2. Step 2: Convert to fraction form
    709,904.98/980,705.24 = 614,245.60/x
  3. Step 3: Cross multiply
    709,904.98x = 980,705.24 × 614,245.60
  4. Step 4: Simplify right side
    709,904.98x = 602,393,878,566.94
  5. Step 5: Solve for x
    x = 602,393,878,566.94/709,904.98
  6. Step 6: Final answer
    x = 848,555.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.