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Finding the Fourth Proportional to 617,409.77, 926,114.60 and 406,998.50

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Solution

The fourth proportional to 617,409.77, 926,114.60 and 406,998.50 is: 610,497.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,409.77 : 926,114.60 = 406,998.50 : x
  2. Step 2: Convert to fraction form
    617,409.77/926,114.60 = 406,998.50/x
  3. Step 3: Cross multiply
    617,409.77x = 926,114.60 × 406,998.50
  4. Step 4: Simplify right side
    617,409.77x = 376,927,249,415.02
  5. Step 5: Solve for x
    x = 376,927,249,415.02/617,409.77
  6. Step 6: Final answer
    x = 610,497.71

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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.