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Finding the Fourth Proportional to 545,226.32, 752,359.56 and 402,063.44

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Solution

The fourth proportional to 545,226.32, 752,359.56 and 402,063.44 is: 554,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,226.32 : 752,359.56 = 402,063.44 : x
  2. Step 2: Convert to fraction form
    545,226.32/752,359.56 = 402,063.44/x
  3. Step 3: Cross multiply
    545,226.32x = 752,359.56 × 402,063.44
  4. Step 4: Simplify right side
    545,226.32x = 302,496,272,810.49
  5. Step 5: Solve for x
    x = 302,496,272,810.49/545,226.32
  6. Step 6: Final answer
    x = 554,808.64

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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.