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Finding the Fourth Proportional to 439,224.04, 657,580.88 and 411,323.56

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Solution

The fourth proportional to 439,224.04, 657,580.88 and 411,323.56 is: 615,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,224.04 : 657,580.88 = 411,323.56 : x
  2. Step 2: Convert to fraction form
    439,224.04/657,580.88 = 411,323.56/x
  3. Step 3: Cross multiply
    439,224.04x = 657,580.88 × 411,323.56
  4. Step 4: Simplify right side
    439,224.04x = 270,478,508,549.53
  5. Step 5: Solve for x
    x = 270,478,508,549.53/439,224.04
  6. Step 6: Final answer
    x = 615,809.89

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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.