Home / 668,211.02-921,239.17-530,845.72

Finding the Fourth Proportional to 668,211.02, 921,239.17 and 530,845.72

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Solution

The fourth proportional to 668,211.02, 921,239.17 and 530,845.72 is: 731,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,211.02 : 921,239.17 = 530,845.72 : x
  2. Step 2: Convert to fraction form
    668,211.02/921,239.17 = 530,845.72/x
  3. Step 3: Cross multiply
    668,211.02x = 921,239.17 × 530,845.72
  4. Step 4: Simplify right side
    668,211.02x = 489,035,870,315.29
  5. Step 5: Solve for x
    x = 489,035,870,315.29/668,211.02
  6. Step 6: Final answer
    x = 731,858.43

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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.