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Finding the Fourth Proportional to 1,034,640.80, 1,551,037.80 and 403,407.80

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Solution

The fourth proportional to 1,034,640.80, 1,551,037.80 and 403,407.80 is: 604,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034,640.80 : 1,551,037.80 = 403,407.80 : x
  2. Step 2: Convert to fraction form
    1,034,640.80/1,551,037.80 = 403,407.80/x
  3. Step 3: Cross multiply
    1,034,640.80x = 1,551,037.80 × 403,407.80
  4. Step 4: Simplify right side
    1,034,640.80x = 625,700,746,614.84
  5. Step 5: Solve for x
    x = 625,700,746,614.84/1,034,640.80
  6. Step 6: Final answer
    x = 604,751.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.