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Finding the Fourth Proportional to 621,810.40, 932,254.80 and 266,533.60

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Solution

The fourth proportional to 621,810.40, 932,254.80 and 266,533.60 is: 399,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,810.40 : 932,254.80 = 266,533.60 : x
  2. Step 2: Convert to fraction form
    621,810.40/932,254.80 = 266,533.60/x
  3. Step 3: Cross multiply
    621,810.40x = 932,254.80 × 266,533.60
  4. Step 4: Simplify right side
    621,810.40x = 248,477,227,961.28
  5. Step 5: Solve for x
    x = 248,477,227,961.28/621,810.40
  6. Step 6: Final answer
    x = 399,602.88

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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.