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Finding the Fourth Proportional to 418,784.01, 626,590.81 and 248,097.35

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Solution

The fourth proportional to 418,784.01, 626,590.81 and 248,097.35 is: 371,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,784.01 : 626,590.81 = 248,097.35 : x
  2. Step 2: Convert to fraction form
    418,784.01/626,590.81 = 248,097.35/x
  3. Step 3: Cross multiply
    418,784.01x = 626,590.81 × 248,097.35
  4. Step 4: Simplify right side
    418,784.01x = 155,455,519,495.35
  5. Step 5: Solve for x
    x = 155,455,519,495.35/418,784.01
  6. Step 6: Final answer
    x = 371,206.91

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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.