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Finding the Fourth Proportional to 710,752.20, 980,523.14 and 424,106.57

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Solution

The fourth proportional to 710,752.20, 980,523.14 and 424,106.57 is: 585,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,752.20 : 980,523.14 = 424,106.57 : x
  2. Step 2: Convert to fraction form
    710,752.20/980,523.14 = 424,106.57/x
  3. Step 3: Cross multiply
    710,752.20x = 980,523.14 × 424,106.57
  4. Step 4: Simplify right side
    710,752.20x = 415,846,298,687.88
  5. Step 5: Solve for x
    x = 415,846,298,687.88/710,752.20
  6. Step 6: Final answer
    x = 585,079.16

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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.