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Finding the Fourth Proportional to 617,547.21, 852,252.71 and 345,609.56

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Solution

The fourth proportional to 617,547.21, 852,252.71 and 345,609.56 is: 476,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,547.21 : 852,252.71 = 345,609.56 : x
  2. Step 2: Convert to fraction form
    617,547.21/852,252.71 = 345,609.56/x
  3. Step 3: Cross multiply
    617,547.21x = 852,252.71 × 345,609.56
  4. Step 4: Simplify right side
    617,547.21x = 294,546,678,122.60
  5. Step 5: Solve for x
    x = 294,546,678,122.60/617,547.21
  6. Step 6: Final answer
    x = 476,962.20

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1.5x scale

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.