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Finding the Fourth Proportional to 692,990.50, 956,326.89 and 375,038.50

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Solution

The fourth proportional to 692,990.50, 956,326.89 and 375,038.50 is: 517,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,990.50 : 956,326.89 = 375,038.50 : x
  2. Step 2: Convert to fraction form
    692,990.50/956,326.89 = 375,038.50/x
  3. Step 3: Cross multiply
    692,990.50x = 956,326.89 × 375,038.50
  4. Step 4: Simplify right side
    692,990.50x = 358,659,402,335.27
  5. Step 5: Solve for x
    x = 358,659,402,335.27/692,990.50
  6. Step 6: Final answer
    x = 517,553.13

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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.