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Finding the Fourth Proportional to 707,091.48, 975,808.20 and 401,180.70

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Solution

The fourth proportional to 707,091.48, 975,808.20 and 401,180.70 is: 553,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,091.48 : 975,808.20 = 401,180.70 : x
  2. Step 2: Convert to fraction form
    707,091.48/975,808.20 = 401,180.70/x
  3. Step 3: Cross multiply
    707,091.48x = 975,808.20 × 401,180.70
  4. Step 4: Simplify right side
    707,091.48x = 391,475,416,741.74
  5. Step 5: Solve for x
    x = 391,475,416,741.74/707,091.48
  6. Step 6: Final answer
    x = 553,641.82

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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.