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Finding the Fourth Proportional to 771,910.83, 1,063,907.00 and 513,325.60

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Solution

The fourth proportional to 771,910.83, 1,063,907.00 and 513,325.60 is: 707,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,910.83 : 1,063,907.00 = 513,325.60 : x
  2. Step 2: Convert to fraction form
    771,910.83/1,063,907.00 = 513,325.60/x
  3. Step 3: Cross multiply
    771,910.83x = 1,063,907.00 × 513,325.60
  4. Step 4: Simplify right side
    771,910.83x = 546,130,704,689.71
  5. Step 5: Solve for x
    x = 546,130,704,689.71/771,910.83
  6. Step 6: Final answer
    x = 707,504.91

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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.