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Finding the Fourth Proportional to 424,705.80, 586,079.10 and 233,714.28

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Solution

The fourth proportional to 424,705.80, 586,079.10 and 233,714.28 is: 322,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,705.80 : 586,079.10 = 233,714.28 : x
  2. Step 2: Convert to fraction form
    424,705.80/586,079.10 = 233,714.28/x
  3. Step 3: Cross multiply
    424,705.80x = 586,079.10 × 233,714.28
  4. Step 4: Simplify right side
    424,705.80x = 136,975,054,879.55
  5. Step 5: Solve for x
    x = 136,975,054,879.55/424,705.80
  6. Step 6: Final answer
    x = 322,517.50

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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.