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Finding the Fourth Proportional to 668,227.35, 921,261.63 and 530,862.06

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Solution

The fourth proportional to 668,227.35, 921,261.63 and 530,862.06 is: 731,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,227.35 : 921,261.63 = 530,862.06 : x
  2. Step 2: Convert to fraction form
    668,227.35/921,261.63 = 530,862.06/x
  3. Step 3: Cross multiply
    668,227.35x = 921,261.63 × 530,862.06
  4. Step 4: Simplify right side
    668,227.35x = 489,062,846,700.76
  5. Step 5: Solve for x
    x = 489,062,846,700.76/668,227.35
  6. Step 6: Final answer
    x = 731,880.92

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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.