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Finding the Fourth Proportional to 710,378.26, 980,341.24 and 424,064.52

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Solution

The fourth proportional to 710,378.26, 980,341.24 and 424,064.52 is: 585,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,378.26 : 980,341.24 = 424,064.52 : x
  2. Step 2: Convert to fraction form
    710,378.26/980,341.24 = 424,064.52/x
  3. Step 3: Cross multiply
    710,378.26x = 980,341.24 × 424,064.52
  4. Step 4: Simplify right side
    710,378.26x = 415,727,937,376.81
  5. Step 5: Solve for x
    x = 415,727,937,376.81/710,378.26
  6. Step 6: Final answer
    x = 585,220.52

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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.