Home / 879,712.40-1,214,009.16-477,304.40

Finding the Fourth Proportional to 879,712.40, 1,214,009.16 and 477,304.40

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Solution

The fourth proportional to 879,712.40, 1,214,009.16 and 477,304.40 is: 658,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,712.40 : 1,214,009.16 = 477,304.40 : x
  2. Step 2: Convert to fraction form
    879,712.40/1,214,009.16 = 477,304.40/x
  3. Step 3: Cross multiply
    879,712.40x = 1,214,009.16 × 477,304.40
  4. Step 4: Simplify right side
    879,712.40x = 579,451,913,708.30
  5. Step 5: Solve for x
    x = 579,451,913,708.30/879,712.40
  6. Step 6: Final answer
    x = 658,683.35

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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.