Home / 896,654.45-1,237,337.96-509,419.11

Finding the Fourth Proportional to 896,654.45, 1,237,337.96 and 509,419.11

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Solution

The fourth proportional to 896,654.45, 1,237,337.96 and 509,419.11 is: 702,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,654.45 : 1,237,337.96 = 509,419.11 : x
  2. Step 2: Convert to fraction form
    896,654.45/1,237,337.96 = 509,419.11/x
  3. Step 3: Cross multiply
    896,654.45x = 1,237,337.96 × 509,419.11
  4. Step 4: Simplify right side
    896,654.45x = 630,323,599,889.93
  5. Step 5: Solve for x
    x = 630,323,599,889.93/896,654.45
  6. Step 6: Final answer
    x = 702,972.70

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Double scale
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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.