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Finding the Fourth Proportional to 664,483.95, 916,928.71 and 370,111.14

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Solution

The fourth proportional to 664,483.95, 916,928.71 and 370,111.14 is: 510,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,483.95 : 916,928.71 = 370,111.14 : x
  2. Step 2: Convert to fraction form
    664,483.95/916,928.71 = 370,111.14/x
  3. Step 3: Cross multiply
    664,483.95x = 916,928.71 × 370,111.14
  4. Step 4: Simplify right side
    664,483.95x = 339,365,526,534.33
  5. Step 5: Solve for x
    x = 339,365,526,534.33/664,483.95
  6. Step 6: Final answer
    x = 510,720.43

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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.