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Finding the Fourth Proportional to 310,210.68, 428,090.94 and 174,244.92

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Solution

The fourth proportional to 310,210.68, 428,090.94 and 174,244.92 is: 240,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,210.68 : 428,090.94 = 174,244.92 : x
  2. Step 2: Convert to fraction form
    310,210.68/428,090.94 = 174,244.92/x
  3. Step 3: Cross multiply
    310,210.68x = 428,090.94 × 174,244.92
  4. Step 4: Simplify right side
    310,210.68x = 74,592,671,593.02
  5. Step 5: Solve for x
    x = 74,592,671,593.02/310,210.68
  6. Step 6: Final answer
    x = 240,458.10

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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.