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Finding the Fourth Proportional to 962,915.13, 1,328,806.62 and 533,186.01

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Solution

The fourth proportional to 962,915.13, 1,328,806.62 and 533,186.01 is: 735,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,915.13 : 1,328,806.62 = 533,186.01 : x
  2. Step 2: Convert to fraction form
    962,915.13/1,328,806.62 = 533,186.01/x
  3. Step 3: Cross multiply
    962,915.13x = 1,328,806.62 × 533,186.01
  4. Step 4: Simplify right side
    962,915.13x = 708,501,099,779.39
  5. Step 5: Solve for x
    x = 708,501,099,779.39/962,915.13
  6. Step 6: Final answer
    x = 735,787.69

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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.