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Finding the Fourth Proportional to 541,492.18, 747,337.41 and 312,005.53

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Solution

The fourth proportional to 541,492.18, 747,337.41 and 312,005.53 is: 430,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,492.18 : 747,337.41 = 312,005.53 : x
  2. Step 2: Convert to fraction form
    541,492.18/747,337.41 = 312,005.53/x
  3. Step 3: Cross multiply
    541,492.18x = 747,337.41 × 312,005.53
  4. Step 4: Simplify right side
    541,492.18x = 233,173,404,695.88
  5. Step 5: Solve for x
    x = 233,173,404,695.88/541,492.18
  6. Step 6: Final answer
    x = 430,612.69

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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.