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Finding the Fourth Proportional to 549,491.40, 824,237.10 and 416,631.15

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Solution

The fourth proportional to 549,491.40, 824,237.10 and 416,631.15 is: 624,946.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,491.40 : 824,237.10 = 416,631.15 : x
  2. Step 2: Convert to fraction form
    549,491.40/824,237.10 = 416,631.15/x
  3. Step 3: Cross multiply
    549,491.40x = 824,237.10 × 416,631.15
  4. Step 4: Simplify right side
    549,491.40x = 343,402,850,845.67
  5. Step 5: Solve for x
    x = 343,402,850,845.67/549,491.40
  6. Step 6: Final answer
    x = 624,946.73

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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.