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Finding the Fourth Proportional to 424,417.52, 636,616.88 and 199,653.28

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Solution

The fourth proportional to 424,417.52, 636,616.88 and 199,653.28 is: 299,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,417.52 : 636,616.88 = 199,653.28 : x
  2. Step 2: Convert to fraction form
    424,417.52/636,616.88 = 199,653.28/x
  3. Step 3: Cross multiply
    424,417.52x = 636,616.88 × 199,653.28
  4. Step 4: Simplify right side
    424,417.52x = 127,102,648,195.37
  5. Step 5: Solve for x
    x = 127,102,648,195.37/424,417.52
  6. Step 6: Final answer
    x = 299,475.50

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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.