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Finding the Fourth Proportional to 899,842.80, 1,349,491.53 and 473,148.69

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Solution

The fourth proportional to 899,842.80, 1,349,491.53 and 473,148.69 is: 709,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,842.80 : 1,349,491.53 = 473,148.69 : x
  2. Step 2: Convert to fraction form
    899,842.80/1,349,491.53 = 473,148.69/x
  3. Step 3: Cross multiply
    899,842.80x = 1,349,491.53 × 473,148.69
  4. Step 4: Simplify right side
    899,842.80x = 638,510,149,585.60
  5. Step 5: Solve for x
    x = 638,510,149,585.60/899,842.80
  6. Step 6: Final answer
    x = 709,579.66

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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.