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Finding the Fourth Proportional to 917,097.51, 1,375,884.12 and 348,488.45

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Solution

The fourth proportional to 917,097.51, 1,375,884.12 and 348,488.45 is: 522,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,097.51 : 1,375,884.12 = 348,488.45 : x
  2. Step 2: Convert to fraction form
    917,097.51/1,375,884.12 = 348,488.45/x
  3. Step 3: Cross multiply
    917,097.51x = 1,375,884.12 × 348,488.45
  4. Step 4: Simplify right side
    917,097.51x = 479,479,717,478.99
  5. Step 5: Solve for x
    x = 479,479,717,478.99/917,097.51
  6. Step 6: Final answer
    x = 522,823.05

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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.