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Finding the Fourth Proportional to 655,766.08, 899,058.72 and 643,810.48

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Solution

The fourth proportional to 655,766.08, 899,058.72 and 643,810.48 is: 882,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,766.08 : 899,058.72 = 643,810.48 : x
  2. Step 2: Convert to fraction form
    655,766.08/899,058.72 = 643,810.48/x
  3. Step 3: Cross multiply
    655,766.08x = 899,058.72 × 643,810.48
  4. Step 4: Simplify right side
    655,766.08x = 578,823,426,071.39
  5. Step 5: Solve for x
    x = 578,823,426,071.39/655,766.08
  6. Step 6: Final answer
    x = 882,667.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.