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Finding the Fourth Proportional to 684,457.93, 944,678.30 and 439,748.60

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Solution

The fourth proportional to 684,457.93, 944,678.30 and 439,748.60 is: 606,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,457.93 : 944,678.30 = 439,748.60 : x
  2. Step 2: Convert to fraction form
    684,457.93/944,678.30 = 439,748.60/x
  3. Step 3: Cross multiply
    684,457.93x = 944,678.30 × 439,748.60
  4. Step 4: Simplify right side
    684,457.93x = 415,420,955,151.99
  5. Step 5: Solve for x
    x = 415,420,955,151.99/684,457.93
  6. Step 6: Final answer
    x = 606,934.24

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Double scale
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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.