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Finding the Fourth Proportional to 617,905.90, 926,858.85 and 497,637.10

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Solution

The fourth proportional to 617,905.90, 926,858.85 and 497,637.10 is: 746,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,905.90 : 926,858.85 = 497,637.10 : x
  2. Step 2: Convert to fraction form
    617,905.90/926,858.85 = 497,637.10/x
  3. Step 3: Cross multiply
    617,905.90x = 926,858.85 × 497,637.10
  4. Step 4: Simplify right side
    617,905.90x = 461,239,350,223.34
  5. Step 5: Solve for x
    x = 461,239,350,223.34/617,905.90
  6. Step 6: Final answer
    x = 746,455.65

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Double scale
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Similar ratio
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1.5x scale

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.