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Finding the Fourth Proportional to 993,875.80, 1,490,813.70 and 362,810.20

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Solution

The fourth proportional to 993,875.80, 1,490,813.70 and 362,810.20 is: 544,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,875.80 : 1,490,813.70 = 362,810.20 : x
  2. Step 2: Convert to fraction form
    993,875.80/1,490,813.70 = 362,810.20/x
  3. Step 3: Cross multiply
    993,875.80x = 1,490,813.70 × 362,810.20
  4. Step 4: Simplify right side
    993,875.80x = 540,882,416,659.74
  5. Step 5: Solve for x
    x = 540,882,416,659.74/993,875.80
  6. Step 6: Final answer
    x = 544,215.30

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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.