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Finding the Fourth Proportional to 623,236.59, 860,041.53 and 351,360.90

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Solution

The fourth proportional to 623,236.59, 860,041.53 and 351,360.90 is: 484,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,236.59 : 860,041.53 = 351,360.90 : x
  2. Step 2: Convert to fraction form
    623,236.59/860,041.53 = 351,360.90/x
  3. Step 3: Cross multiply
    623,236.59x = 860,041.53 × 351,360.90
  4. Step 4: Simplify right side
    623,236.59x = 302,184,966,018.18
  5. Step 5: Solve for x
    x = 302,184,966,018.18/623,236.59
  6. Step 6: Final answer
    x = 484,863.97

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.