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Finding the Fourth Proportional to 676,800.42, 933,984.54 and 404,879.74

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Solution

The fourth proportional to 676,800.42, 933,984.54 and 404,879.74 is: 558,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,800.42 : 933,984.54 = 404,879.74 : x
  2. Step 2: Convert to fraction form
    676,800.42/933,984.54 = 404,879.74/x
  3. Step 3: Cross multiply
    676,800.42x = 933,984.54 × 404,879.74
  4. Step 4: Simplify right side
    676,800.42x = 378,151,417,719.22
  5. Step 5: Solve for x
    x = 378,151,417,719.22/676,800.42
  6. Step 6: Final answer
    x = 558,734.02

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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.