Home / 778,165.60-1,166,384.40-304,693.60

Finding the Fourth Proportional to 778,165.60, 1,166,384.40 and 304,693.60

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Solution

The fourth proportional to 778,165.60, 1,166,384.40 and 304,693.60 is: 456,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,165.60 : 1,166,384.40 = 304,693.60 : x
  2. Step 2: Convert to fraction form
    778,165.60/1,166,384.40 = 304,693.60/x
  3. Step 3: Cross multiply
    778,165.60x = 1,166,384.40 × 304,693.60
  4. Step 4: Simplify right side
    778,165.60x = 355,389,861,819.84
  5. Step 5: Solve for x
    x = 355,389,861,819.84/778,165.60
  6. Step 6: Final answer
    x = 456,702.10

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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.