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Finding the Fourth Proportional to 555,254.16, 766,266.45 and 313,573.08

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Solution

The fourth proportional to 555,254.16, 766,266.45 and 313,573.08 is: 432,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,254.16 : 766,266.45 = 313,573.08 : x
  2. Step 2: Convert to fraction form
    555,254.16/766,266.45 = 313,573.08/x
  3. Step 3: Cross multiply
    555,254.16x = 766,266.45 × 313,573.08
  4. Step 4: Simplify right side
    555,254.16x = 240,280,530,827.17
  5. Step 5: Solve for x
    x = 240,280,530,827.17/555,254.16
  6. Step 6: Final answer
    x = 432,739.72

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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.