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Finding the Fourth Proportional to 304,547.60, 456,564.50 and 191,979.72

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Solution

The fourth proportional to 304,547.60, 456,564.50 and 191,979.72 is: 287,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,547.60 : 456,564.50 = 191,979.72 : x
  2. Step 2: Convert to fraction form
    304,547.60/456,564.50 = 191,979.72/x
  3. Step 3: Cross multiply
    304,547.60x = 456,564.50 × 191,979.72
  4. Step 4: Simplify right side
    304,547.60x = 87,651,124,631.97
  5. Step 5: Solve for x
    x = 87,651,124,631.97/304,547.60
  6. Step 6: Final answer
    x = 287,807.64

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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.