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Finding the Fourth Proportional to 541,373.68, 747,029.99 and 312,005.22

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Solution

The fourth proportional to 541,373.68, 747,029.99 and 312,005.22 is: 430,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,373.68 : 747,029.99 = 312,005.22 : x
  2. Step 2: Convert to fraction form
    541,373.68/747,029.99 = 312,005.22/x
  3. Step 3: Cross multiply
    541,373.68x = 747,029.99 × 312,005.22
  4. Step 4: Simplify right side
    541,373.68x = 233,077,254,355.20
  5. Step 5: Solve for x
    x = 233,077,254,355.20/541,373.68
  6. Step 6: Final answer
    x = 430,529.35

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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.