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Finding the Fourth Proportional to 461,461.61, 636,815.83 and 257,510.37

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Solution

The fourth proportional to 461,461.61, 636,815.83 and 257,510.37 is: 355,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,461.61 : 636,815.83 = 257,510.37 : x
  2. Step 2: Convert to fraction form
    461,461.61/636,815.83 = 257,510.37/x
  3. Step 3: Cross multiply
    461,461.61x = 636,815.83 × 257,510.37
  4. Step 4: Simplify right side
    461,461.61x = 163,986,678,717.61
  5. Step 5: Solve for x
    x = 163,986,678,717.61/461,461.61
  6. Step 6: Final answer
    x = 355,363.64

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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.