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Finding the Fourth Proportional to 554,423.40, 777,767.40 and 554,423.40

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Solution

The fourth proportional to 554,423.40, 777,767.40 and 554,423.40 is: 777,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,423.40 : 777,767.40 = 554,423.40 : x
  2. Step 2: Convert to fraction form
    554,423.40/777,767.40 = 554,423.40/x
  3. Step 3: Cross multiply
    554,423.40x = 777,767.40 × 554,423.40
  4. Step 4: Simplify right side
    554,423.40x = 431,212,446,317.16
  5. Step 5: Solve for x
    x = 431,212,446,317.16/554,423.40
  6. Step 6: Final answer
    x = 777,767.40

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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.