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Finding the Fourth Proportional to 540,613.26, 745,187.45 and 425,709.63

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Solution

The fourth proportional to 540,613.26, 745,187.45 and 425,709.63 is: 586,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,613.26 : 745,187.45 = 425,709.63 : x
  2. Step 2: Convert to fraction form
    540,613.26/745,187.45 = 425,709.63/x
  3. Step 3: Cross multiply
    540,613.26x = 745,187.45 × 425,709.63
  4. Step 4: Simplify right side
    540,613.26x = 317,233,471,491.60
  5. Step 5: Solve for x
    x = 317,233,471,491.60/540,613.26
  6. Step 6: Final answer
    x = 586,802.98

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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.