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Finding the Fourth Proportional to 657,497.90, 986,246.85 and 657,497.90

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Solution

The fourth proportional to 657,497.90, 986,246.85 and 657,497.90 is: 986,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,497.90 : 986,246.85 = 657,497.90 : x
  2. Step 2: Convert to fraction form
    657,497.90/986,246.85 = 657,497.90/x
  3. Step 3: Cross multiply
    657,497.90x = 986,246.85 × 657,497.90
  4. Step 4: Simplify right side
    657,497.90x = 648,455,232,756.62
  5. Step 5: Solve for x
    x = 648,455,232,756.62/657,497.90
  6. Step 6: Final answer
    x = 986,246.85

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Half scale
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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.