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Finding the Fourth Proportional to 670,320.80, 925,048.71 and 364,397.76

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Solution

The fourth proportional to 670,320.80, 925,048.71 and 364,397.76 is: 502,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,320.80 : 925,048.71 = 364,397.76 : x
  2. Step 2: Convert to fraction form
    670,320.80/925,048.71 = 364,397.76/x
  3. Step 3: Cross multiply
    670,320.80x = 925,048.71 × 364,397.76
  4. Step 4: Simplify right side
    670,320.80x = 337,085,677,814.89
  5. Step 5: Solve for x
    x = 337,085,677,814.89/670,320.80
  6. Step 6: Final answer
    x = 502,872.18

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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.