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Finding the Fourth Proportional to 648,874.80, 973,312.20 and 572,767.20

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Solution

The fourth proportional to 648,874.80, 973,312.20 and 572,767.20 is: 859,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,874.80 : 973,312.20 = 572,767.20 : x
  2. Step 2: Convert to fraction form
    648,874.80/973,312.20 = 572,767.20/x
  3. Step 3: Cross multiply
    648,874.80x = 973,312.20 × 572,767.20
  4. Step 4: Simplify right side
    648,874.80x = 557,481,303,519.84
  5. Step 5: Solve for x
    x = 557,481,303,519.84/648,874.80
  6. Step 6: Final answer
    x = 859,150.80

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1.5x scale

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.