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Finding the Fourth Proportional to 440,448.95, 607,809.20 and 256,675.74

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Solution

The fourth proportional to 440,448.95, 607,809.20 and 256,675.74 is: 354,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,448.95 : 607,809.20 = 256,675.74 : x
  2. Step 2: Convert to fraction form
    440,448.95/607,809.20 = 256,675.74/x
  3. Step 3: Cross multiply
    440,448.95x = 607,809.20 × 256,675.74
  4. Step 4: Simplify right side
    440,448.95x = 156,009,874,905.43
  5. Step 5: Solve for x
    x = 156,009,874,905.43/440,448.95
  6. Step 6: Final answer
    x = 354,206.49

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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.