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Finding the Fourth Proportional to 370,866.60, 553,182.12 and 336,810.87

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Solution

The fourth proportional to 370,866.60, 553,182.12 and 336,810.87 is: 502,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,866.60 : 553,182.12 = 336,810.87 : x
  2. Step 2: Convert to fraction form
    370,866.60/553,182.12 = 336,810.87/x
  3. Step 3: Cross multiply
    370,866.60x = 553,182.12 × 336,810.87
  4. Step 4: Simplify right side
    370,866.60x = 186,317,751,105.64
  5. Step 5: Solve for x
    x = 186,317,751,105.64/370,866.60
  6. Step 6: Final answer
    x = 502,384.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.