Home / 808,815.40-1,213,223.10-651,351.40

Finding the Fourth Proportional to 808,815.40, 1,213,223.10 and 651,351.40

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Solution

The fourth proportional to 808,815.40, 1,213,223.10 and 651,351.40 is: 977,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,815.40 : 1,213,223.10 = 651,351.40 : x
  2. Step 2: Convert to fraction form
    808,815.40/1,213,223.10 = 651,351.40/x
  3. Step 3: Cross multiply
    808,815.40x = 1,213,223.10 × 651,351.40
  4. Step 4: Simplify right side
    808,815.40x = 790,234,564,697.34
  5. Step 5: Solve for x
    x = 790,234,564,697.34/808,815.40
  6. Step 6: Final answer
    x = 977,027.10

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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.