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Finding the Fourth Proportional to 376,800.30, 565,200.45 and 127,482.30

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Solution

The fourth proportional to 376,800.30, 565,200.45 and 127,482.30 is: 191,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,800.30 : 565,200.45 = 127,482.30 : x
  2. Step 2: Convert to fraction form
    376,800.30/565,200.45 = 127,482.30/x
  3. Step 3: Cross multiply
    376,800.30x = 565,200.45 × 127,482.30
  4. Step 4: Simplify right side
    376,800.30x = 72,053,053,327.04
  5. Step 5: Solve for x
    x = 72,053,053,327.04/376,800.30
  6. Step 6: Final answer
    x = 191,223.45

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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.