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Finding the Fourth Proportional to 286,386.60, 430,038.90 and 227,710.20

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Solution

The fourth proportional to 286,386.60, 430,038.90 and 227,710.20 is: 341,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,386.60 : 430,038.90 = 227,710.20 : x
  2. Step 2: Convert to fraction form
    286,386.60/430,038.90 = 227,710.20/x
  3. Step 3: Cross multiply
    286,386.60x = 430,038.90 × 227,710.20
  4. Step 4: Simplify right side
    286,386.60x = 97,924,243,926.78
  5. Step 5: Solve for x
    x = 97,924,243,926.78/286,386.60
  6. Step 6: Final answer
    x = 341,930.26

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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.