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Finding the Fourth Proportional to 496,803.60, 745,205.40 and 417,087.45

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Solution

The fourth proportional to 496,803.60, 745,205.40 and 417,087.45 is: 625,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,803.60 : 745,205.40 = 417,087.45 : x
  2. Step 2: Convert to fraction form
    496,803.60/745,205.40 = 417,087.45/x
  3. Step 3: Cross multiply
    496,803.60x = 745,205.40 × 417,087.45
  4. Step 4: Simplify right side
    496,803.60x = 310,815,820,012.23
  5. Step 5: Solve for x
    x = 310,815,820,012.23/496,803.60
  6. Step 6: Final answer
    x = 625,631.18

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1.5x scale

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.