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Finding the Fourth Proportional to 668,224.80, 917,037.36 and 663,500.88

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Solution

The fourth proportional to 668,224.80, 917,037.36 and 663,500.88 is: 910,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,224.80 : 917,037.36 = 663,500.88 : x
  2. Step 2: Convert to fraction form
    668,224.80/917,037.36 = 663,500.88/x
  3. Step 3: Cross multiply
    668,224.80x = 917,037.36 × 663,500.88
  4. Step 4: Simplify right side
    668,224.80x = 608,455,095,352.88
  5. Step 5: Solve for x
    x = 608,455,095,352.88/668,224.80
  6. Step 6: Final answer
    x = 910,554.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.