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Finding the Fourth Proportional to 657,809.56, 986,541.54 and 283,749.40

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Solution

The fourth proportional to 657,809.56, 986,541.54 and 283,749.40 is: 425,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,809.56 : 986,541.54 = 283,749.40 : x
  2. Step 2: Convert to fraction form
    657,809.56/986,541.54 = 283,749.40/x
  3. Step 3: Cross multiply
    657,809.56x = 986,541.54 × 283,749.40
  4. Step 4: Simplify right side
    657,809.56x = 279,930,570,050.08
  5. Step 5: Solve for x
    x = 279,930,570,050.08/657,809.56
  6. Step 6: Final answer
    x = 425,549.56

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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.