Home / 879,803.60-1,214,143.08-477,395.60

Finding the Fourth Proportional to 879,803.60, 1,214,143.08 and 477,395.60

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Solution

The fourth proportional to 879,803.60, 1,214,143.08 and 477,395.60 is: 658,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,803.60 : 1,214,143.08 = 477,395.60 : x
  2. Step 2: Convert to fraction form
    879,803.60/1,214,143.08 = 477,395.60/x
  3. Step 3: Cross multiply
    879,803.60x = 1,214,143.08 × 477,395.60
  4. Step 4: Simplify right side
    879,803.60x = 579,626,564,162.45
  5. Step 5: Solve for x
    x = 579,626,564,162.45/879,803.60
  6. Step 6: Final answer
    x = 658,813.59

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Double scale
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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.