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Finding the Fourth Proportional to 968,752.80, 1,452,956.40 and 613,130.40

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Solution

The fourth proportional to 968,752.80, 1,452,956.40 and 613,130.40 is: 919,586.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,752.80 : 1,452,956.40 = 613,130.40 : x
  2. Step 2: Convert to fraction form
    968,752.80/1,452,956.40 = 613,130.40/x
  3. Step 3: Cross multiply
    968,752.80x = 1,452,956.40 × 613,130.40
  4. Step 4: Simplify right side
    968,752.80x = 890,851,738,714.56
  5. Step 5: Solve for x
    x = 890,851,738,714.56/968,752.80
  6. Step 6: Final answer
    x = 919,586.23

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1.5x scale

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.