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Finding the Fourth Proportional to 922,980.86, 1,273,706.17 and 535,832.20

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Solution

The fourth proportional to 922,980.86, 1,273,706.17 and 535,832.20 is: 739,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,980.86 : 1,273,706.17 = 535,832.20 : x
  2. Step 2: Convert to fraction form
    922,980.86/1,273,706.17 = 535,832.20/x
  3. Step 3: Cross multiply
    922,980.86x = 1,273,706.17 × 535,832.20
  4. Step 4: Simplify right side
    922,980.86x = 682,492,779,224.67
  5. Step 5: Solve for x
    x = 682,492,779,224.67/922,980.86
  6. Step 6: Final answer
    x = 739,444.13

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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.