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Finding the Fourth Proportional to 369,715.80, 554,573.70 and 293,608.20

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Solution

The fourth proportional to 369,715.80, 554,573.70 and 293,608.20 is: 440,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,715.80 : 554,573.70 = 293,608.20 : x
  2. Step 2: Convert to fraction form
    369,715.80/554,573.70 = 293,608.20/x
  3. Step 3: Cross multiply
    369,715.80x = 554,573.70 × 293,608.20
  4. Step 4: Simplify right side
    369,715.80x = 162,827,385,824.34
  5. Step 5: Solve for x
    x = 162,827,385,824.34/369,715.80
  6. Step 6: Final answer
    x = 440,412.30

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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.