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Finding the Fourth Proportional to 453,772.12, 626,181.74 and 249,783.20

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Solution

The fourth proportional to 453,772.12, 626,181.74 and 249,783.20 is: 344,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,772.12 : 626,181.74 = 249,783.20 : x
  2. Step 2: Convert to fraction form
    453,772.12/626,181.74 = 249,783.20/x
  3. Step 3: Cross multiply
    453,772.12x = 626,181.74 × 249,783.20
  4. Step 4: Simplify right side
    453,772.12x = 156,409,679,108.84
  5. Step 5: Solve for x
    x = 156,409,679,108.84/453,772.12
  6. Step 6: Final answer
    x = 344,687.72

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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.