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Finding the Fourth Proportional to 573,521.77, 791,418.95 and 315,416.89

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Solution

The fourth proportional to 573,521.77, 791,418.95 and 315,416.89 is: 435,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,521.77 : 791,418.95 = 315,416.89 : x
  2. Step 2: Convert to fraction form
    573,521.77/791,418.95 = 315,416.89/x
  3. Step 3: Cross multiply
    573,521.77x = 791,418.95 × 315,416.89
  4. Step 4: Simplify right side
    573,521.77x = 249,626,901,813.56
  5. Step 5: Solve for x
    x = 249,626,901,813.56/573,521.77
  6. Step 6: Final answer
    x = 435,252.71

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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.