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Finding the Fourth Proportional to 519,011.28, 716,234.40 and 292,655.16

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Solution

The fourth proportional to 519,011.28, 716,234.40 and 292,655.16 is: 403,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,011.28 : 716,234.40 = 292,655.16 : x
  2. Step 2: Convert to fraction form
    519,011.28/716,234.40 = 292,655.16/x
  3. Step 3: Cross multiply
    519,011.28x = 716,234.40 × 292,655.16
  4. Step 4: Simplify right side
    519,011.28x = 209,609,692,929.50
  5. Step 5: Solve for x
    x = 209,609,692,929.50/519,011.28
  6. Step 6: Final answer
    x = 403,863.46

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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.