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Finding the Fourth Proportional to 702,908.28, 970,085.04 and 506,836.05

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Solution

The fourth proportional to 702,908.28, 970,085.04 and 506,836.05 is: 699,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,908.28 : 970,085.04 = 506,836.05 : x
  2. Step 2: Convert to fraction form
    702,908.28/970,085.04 = 506,836.05/x
  3. Step 3: Cross multiply
    702,908.28x = 970,085.04 × 506,836.05
  4. Step 4: Simplify right side
    702,908.28x = 491,674,069,837.69
  5. Step 5: Solve for x
    x = 491,674,069,837.69/702,908.28
  6. Step 6: Final answer
    x = 699,485.39

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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.