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Finding the Fourth Proportional to 354,304.04, 531,457.98 and 104,988.20

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Solution

The fourth proportional to 354,304.04, 531,457.98 and 104,988.20 is: 157,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,304.04 : 531,457.98 = 104,988.20 : x
  2. Step 2: Convert to fraction form
    354,304.04/531,457.98 = 104,988.20/x
  3. Step 3: Cross multiply
    354,304.04x = 531,457.98 × 104,988.20
  4. Step 4: Simplify right side
    354,304.04x = 55,796,816,695.84
  5. Step 5: Solve for x
    x = 55,796,816,695.84/354,304.04
  6. Step 6: Final answer
    x = 157,482.87

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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.