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Finding the Fourth Proportional to 554,111.12, 764,318.76 and 384,283.28

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Solution

The fourth proportional to 554,111.12, 764,318.76 and 384,283.28 is: 530,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,111.12 : 764,318.76 = 384,283.28 : x
  2. Step 2: Convert to fraction form
    554,111.12/764,318.76 = 384,283.28/x
  3. Step 3: Cross multiply
    554,111.12x = 764,318.76 × 384,283.28
  4. Step 4: Simplify right side
    554,111.12x = 293,714,920,058.33
  5. Step 5: Solve for x
    x = 293,714,920,058.33/554,111.12
  6. Step 6: Final answer
    x = 530,065.02

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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.