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Finding the Fourth Proportional to 346,000.31, 477,478.89 and 187,024.31

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Solution

The fourth proportional to 346,000.31, 477,478.89 and 187,024.31 is: 258,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,000.31 : 477,478.89 = 187,024.31 : x
  2. Step 2: Convert to fraction form
    346,000.31/477,478.89 = 187,024.31/x
  3. Step 3: Cross multiply
    346,000.31x = 477,478.89 × 187,024.31
  4. Step 4: Simplify right side
    346,000.31x = 89,300,159,941.82
  5. Step 5: Solve for x
    x = 89,300,159,941.82/346,000.31
  6. Step 6: Final answer
    x = 258,092.72

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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.