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Finding the Fourth Proportional to 531,521.54, 732,903.82 and 434,424.08

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Solution

The fourth proportional to 531,521.54, 732,903.82 and 434,424.08 is: 599,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,521.54 : 732,903.82 = 434,424.08 : x
  2. Step 2: Convert to fraction form
    531,521.54/732,903.82 = 434,424.08/x
  3. Step 3: Cross multiply
    531,521.54x = 732,903.82 × 434,424.08
  4. Step 4: Simplify right side
    531,521.54x = 318,391,067,731.99
  5. Step 5: Solve for x
    x = 318,391,067,731.99/531,521.54
  6. Step 6: Final answer
    x = 599,018.18

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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.