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Finding the Fourth Proportional to 620,601.16, 930,883.14 and 171,349.48

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Solution

The fourth proportional to 620,601.16, 930,883.14 and 171,349.48 is: 257,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,601.16 : 930,883.14 = 171,349.48 : x
  2. Step 2: Convert to fraction form
    620,601.16/930,883.14 = 171,349.48/x
  3. Step 3: Cross multiply
    620,601.16x = 930,883.14 × 171,349.48
  4. Step 4: Simplify right side
    620,601.16x = 159,506,341,979.77
  5. Step 5: Solve for x
    x = 159,506,341,979.77/620,601.16
  6. Step 6: Final answer
    x = 257,019.08

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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.