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Finding the Fourth Proportional to 545,653.30, 817,097.55 and 435,061.30

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Solution

The fourth proportional to 545,653.30, 817,097.55 and 435,061.30 is: 651,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,653.30 : 817,097.55 = 435,061.30 : x
  2. Step 2: Convert to fraction form
    545,653.30/817,097.55 = 435,061.30/x
  3. Step 3: Cross multiply
    545,653.30x = 817,097.55 × 435,061.30
  4. Step 4: Simplify right side
    545,653.30x = 355,487,522,329.82
  5. Step 5: Solve for x
    x = 355,487,522,329.82/545,653.30
  6. Step 6: Final answer
    x = 651,489.73

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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.