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Finding the Fourth Proportional to 579,710.10, 812,147.10 and 579,710.10

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Solution

The fourth proportional to 579,710.10, 812,147.10 and 579,710.10 is: 812,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,710.10 : 812,147.10 = 579,710.10 : x
  2. Step 2: Convert to fraction form
    579,710.10/812,147.10 = 579,710.10/x
  3. Step 3: Cross multiply
    579,710.10x = 812,147.10 × 579,710.10
  4. Step 4: Simplify right side
    579,710.10x = 470,809,876,555.71
  5. Step 5: Solve for x
    x = 470,809,876,555.71/579,710.10
  6. Step 6: Final answer
    x = 812,147.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.