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Finding the Fourth Proportional to 676,679.36, 933,395.16 and 435,276.64

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Solution

The fourth proportional to 676,679.36, 933,395.16 and 435,276.64 is: 600,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,679.36 : 933,395.16 = 435,276.64 : x
  2. Step 2: Convert to fraction form
    676,679.36/933,395.16 = 435,276.64/x
  3. Step 3: Cross multiply
    676,679.36x = 933,395.16 × 435,276.64
  4. Step 4: Simplify right side
    676,679.36x = 406,285,109,037.06
  5. Step 5: Solve for x
    x = 406,285,109,037.06/676,679.36
  6. Step 6: Final answer
    x = 600,410.08

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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.