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Finding the Fourth Proportional to 545,658.80, 817,105.80 and 435,066.80

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Solution

The fourth proportional to 545,658.80, 817,105.80 and 435,066.80 is: 651,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,658.80 : 817,105.80 = 435,066.80 : x
  2. Step 2: Convert to fraction form
    545,658.80/817,105.80 = 435,066.80/x
  3. Step 3: Cross multiply
    545,658.80x = 817,105.80 × 435,066.80
  4. Step 4: Simplify right side
    545,658.80x = 355,495,605,667.44
  5. Step 5: Solve for x
    x = 355,495,605,667.44/545,658.80
  6. Step 6: Final answer
    x = 651,497.98

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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.