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Finding the Fourth Proportional to 302,156,643.60, 453,234,965.40 and 266,443,808.40

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Solution

The fourth proportional to 302,156,643.60, 453,234,965.40 and 266,443,808.40 is: 399,665,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,156,643.60 : 453,234,965.40 = 266,443,808.40 : x
  2. Step 2: Convert to fraction form
    302,156,643.60/453,234,965.40 = 266,443,808.40/x
  3. Step 3: Cross multiply
    302,156,643.60x = 453,234,965.40 × 266,443,808.40
  4. Step 4: Simplify right side
    302,156,643.60x = 120,761,650,281,218,224
  5. Step 5: Solve for x
    x = 120,761,650,281,218,224/302,156,643.60
  6. Step 6: Final answer
    x = 399,665,712.60

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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.