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Finding the Fourth Proportional to 455,878.17, 683,602.59 and 266,393.30

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Solution

The fourth proportional to 455,878.17, 683,602.59 and 266,393.30 is: 399,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,878.17 : 683,602.59 = 266,393.30 : x
  2. Step 2: Convert to fraction form
    455,878.17/683,602.59 = 266,393.30/x
  3. Step 3: Cross multiply
    455,878.17x = 683,602.59 × 266,393.30
  4. Step 4: Simplify right side
    455,878.17x = 182,107,145,088.67
  5. Step 5: Solve for x
    x = 182,107,145,088.67/455,878.17
  6. Step 6: Final answer
    x = 399,464.50

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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.