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Finding the Fourth Proportional to 709,755.55, 979,813.84 and 437,973.11

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Solution

The fourth proportional to 709,755.55, 979,813.84 and 437,973.11 is: 604,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,755.55 : 979,813.84 = 437,973.11 : x
  2. Step 2: Convert to fraction form
    709,755.55/979,813.84 = 437,973.11/x
  3. Step 3: Cross multiply
    709,755.55x = 979,813.84 × 437,973.11
  4. Step 4: Simplify right side
    709,755.55x = 429,132,114,459.14
  5. Step 5: Solve for x
    x = 429,132,114,459.14/709,755.55
  6. Step 6: Final answer
    x = 604,619.60

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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.