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Finding the Fourth Proportional to 404,875.24, 607,681.40 and 215,494.60

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Solution

The fourth proportional to 404,875.24, 607,681.40 and 215,494.60 is: 323,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,875.24 : 607,681.40 = 215,494.60 : x
  2. Step 2: Convert to fraction form
    404,875.24/607,681.40 = 215,494.60/x
  3. Step 3: Cross multiply
    404,875.24x = 607,681.40 × 215,494.60
  4. Step 4: Simplify right side
    404,875.24x = 130,952,060,220.44
  5. Step 5: Solve for x
    x = 130,952,060,220.44/404,875.24
  6. Step 6: Final answer
    x = 323,438.06

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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.