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Finding the Fourth Proportional to 586,140.76, 808,917.73 and 328,043.58

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Solution

The fourth proportional to 586,140.76, 808,917.73 and 328,043.58 is: 452,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,140.76 : 808,917.73 = 328,043.58 : x
  2. Step 2: Convert to fraction form
    586,140.76/808,917.73 = 328,043.58/x
  3. Step 3: Cross multiply
    586,140.76x = 808,917.73 × 328,043.58
  4. Step 4: Simplify right side
    586,140.76x = 265,360,266,066.37
  5. Step 5: Solve for x
    x = 265,360,266,066.37/586,140.76
  6. Step 6: Final answer
    x = 452,724.47

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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.