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Finding the Fourth Proportional to 586,192.40, 808,960 and 328,067.28

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Solution

The fourth proportional to 586,192.40, 808,960 and 328,067.28 is: 452,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,192.40 : 808,960 = 328,067.28 : x
  2. Step 2: Convert to fraction form
    586,192.40/808,960 = 328,067.28/x
  3. Step 3: Cross multiply
    586,192.40x = 808,960 × 328,067.28
  4. Step 4: Simplify right side
    586,192.40x = 265,393,306,828.80
  5. Step 5: Solve for x
    x = 265,393,306,828.80/586,192.40
  6. Step 6: Final answer
    x = 452,740.95

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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.