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Finding the Fourth Proportional to 961,715.60, 1,327,051.89 and 553,950.07

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Solution

The fourth proportional to 961,715.60, 1,327,051.89 and 553,950.07 is: 764,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,715.60 : 1,327,051.89 = 553,950.07 : x
  2. Step 2: Convert to fraction form
    961,715.60/1,327,051.89 = 553,950.07/x
  3. Step 3: Cross multiply
    961,715.60x = 1,327,051.89 × 553,950.07
  4. Step 4: Simplify right side
    961,715.60x = 735,120,487,359.13
  5. Step 5: Solve for x
    x = 735,120,487,359.13/961,715.60
  6. Step 6: Final answer
    x = 764,384.49

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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.