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Finding the Fourth Proportional to 545,000.07, 751,320.64 and 383,353.43

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Solution

The fourth proportional to 545,000.07, 751,320.64 and 383,353.43 is: 528,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,000.07 : 751,320.64 = 383,353.43 : x
  2. Step 2: Convert to fraction form
    545,000.07/751,320.64 = 383,353.43/x
  3. Step 3: Cross multiply
    545,000.07x = 751,320.64 × 383,353.43
  4. Step 4: Simplify right side
    545,000.07x = 288,021,345,293.71
  5. Step 5: Solve for x
    x = 288,021,345,293.71/545,000.07
  6. Step 6: Final answer
    x = 528,479.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.