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Finding the Fourth Proportional to 361,637.70, 542,456.55 and 346,280.10

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Solution

The fourth proportional to 361,637.70, 542,456.55 and 346,280.10 is: 519,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,637.70 : 542,456.55 = 346,280.10 : x
  2. Step 2: Convert to fraction form
    361,637.70/542,456.55 = 346,280.10/x
  3. Step 3: Cross multiply
    361,637.70x = 542,456.55 × 346,280.10
  4. Step 4: Simplify right side
    361,637.70x = 187,841,908,379.66
  5. Step 5: Solve for x
    x = 187,841,908,379.66/361,637.70
  6. Step 6: Final answer
    x = 519,420.15

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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.