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Finding the Fourth Proportional to 435,642.55, 601,116.18 and 272,279.79

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Solution

The fourth proportional to 435,642.55, 601,116.18 and 272,279.79 is: 375,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,642.55 : 601,116.18 = 272,279.79 : x
  2. Step 2: Convert to fraction form
    435,642.55/601,116.18 = 272,279.79/x
  3. Step 3: Cross multiply
    435,642.55x = 601,116.18 × 272,279.79
  4. Step 4: Simplify right side
    435,642.55x = 163,671,787,256.00
  5. Step 5: Solve for x
    x = 163,671,787,256.00/435,642.55
  6. Step 6: Final answer
    x = 375,702.02

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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.