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Finding the Fourth Proportional to 360,870.59, 497,945.93 and 207,878.90

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Solution

The fourth proportional to 360,870.59, 497,945.93 and 207,878.90 is: 286,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,870.59 : 497,945.93 = 207,878.90 : x
  2. Step 2: Convert to fraction form
    360,870.59/497,945.93 = 207,878.90/x
  3. Step 3: Cross multiply
    360,870.59x = 497,945.93 × 207,878.90
  4. Step 4: Simplify right side
    360,870.59x = 103,512,448,658.75
  5. Step 5: Solve for x
    x = 103,512,448,658.75/360,870.59
  6. Step 6: Final answer
    x = 286,840.91

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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.