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Finding the Fourth Proportional to 533,038.74, 803,154.44 and 440,345.48

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Solution

The fourth proportional to 533,038.74, 803,154.44 and 440,345.48 is: 663,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,038.74 : 803,154.44 = 440,345.48 : x
  2. Step 2: Convert to fraction form
    533,038.74/803,154.44 = 440,345.48/x
  3. Step 3: Cross multiply
    533,038.74x = 803,154.44 × 440,345.48
  4. Step 4: Simplify right side
    533,038.74x = 353,665,424,481.02
  5. Step 5: Solve for x
    x = 353,665,424,481.02/533,038.74
  6. Step 6: Final answer
    x = 663,489.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.