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Finding the Fourth Proportional to 619,316.77, 928,806.53 and 169,931.10

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Solution

The fourth proportional to 619,316.77, 928,806.53 and 169,931.10 is: 254,850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,316.77 : 928,806.53 = 169,931.10 : x
  2. Step 2: Convert to fraction form
    619,316.77/928,806.53 = 169,931.10/x
  3. Step 3: Cross multiply
    619,316.77x = 928,806.53 × 169,931.10
  4. Step 4: Simplify right side
    619,316.77x = 157,833,115,330.08
  5. Step 5: Solve for x
    x = 157,833,115,330.08/619,316.77
  6. Step 6: Final answer
    x = 254,850.38

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Double scale
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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.