Home / 879,923.72-1,214,294.74-477,515.72

Finding the Fourth Proportional to 879,923.72, 1,214,294.74 and 477,515.72

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Solution

The fourth proportional to 879,923.72, 1,214,294.74 and 477,515.72 is: 658,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,923.72 : 1,214,294.74 = 477,515.72 : x
  2. Step 2: Convert to fraction form
    879,923.72/1,214,294.74 = 477,515.72/x
  3. Step 3: Cross multiply
    879,923.72x = 1,214,294.74 × 477,515.72
  4. Step 4: Simplify right side
    879,923.72x = 579,844,828,905.26
  5. Step 5: Solve for x
    x = 579,844,828,905.26/879,923.72
  6. Step 6: Final answer
    x = 658,971.70

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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.