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Finding the Fourth Proportional to 354,895.80, 532,343.70 and 177,430.20

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Solution

The fourth proportional to 354,895.80, 532,343.70 and 177,430.20 is: 266,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,895.80 : 532,343.70 = 177,430.20 : x
  2. Step 2: Convert to fraction form
    354,895.80/532,343.70 = 177,430.20/x
  3. Step 3: Cross multiply
    354,895.80x = 532,343.70 × 177,430.20
  4. Step 4: Simplify right side
    354,895.80x = 94,453,849,159.74
  5. Step 5: Solve for x
    x = 94,453,849,159.74/354,895.80
  6. Step 6: Final answer
    x = 266,145.30

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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.