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Finding the Fourth Proportional to 555,631.80, 776,951.40 and 555,631.80

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Solution

The fourth proportional to 555,631.80, 776,951.40 and 555,631.80 is: 776,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,631.80 : 776,951.40 = 555,631.80 : x
  2. Step 2: Convert to fraction form
    555,631.80/776,951.40 = 555,631.80/x
  3. Step 3: Cross multiply
    555,631.80x = 776,951.40 × 555,631.80
  4. Step 4: Simplify right side
    555,631.80x = 431,698,904,894.52
  5. Step 5: Solve for x
    x = 431,698,904,894.52/555,631.80
  6. Step 6: Final answer
    x = 776,951.40

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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.