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Finding the Fourth Proportional to 693,444.94, 956,951.20 and 387,521.24

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Solution

The fourth proportional to 693,444.94, 956,951.20 and 387,521.24 is: 534,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,444.94 : 956,951.20 = 387,521.24 : x
  2. Step 2: Convert to fraction form
    693,444.94/956,951.20 = 387,521.24/x
  3. Step 3: Cross multiply
    693,444.94x = 956,951.20 × 387,521.24
  4. Step 4: Simplify right side
    693,444.94x = 370,838,915,643.49
  5. Step 5: Solve for x
    x = 370,838,915,643.49/693,444.94
  6. Step 6: Final answer
    x = 534,777.74

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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.