Home / 519,984.40-779,746.20-239,587.60

Finding the Fourth Proportional to 519,984.40, 779,746.20 and 239,587.60

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Solution

The fourth proportional to 519,984.40, 779,746.20 and 239,587.60 is: 359,275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,984.40 : 779,746.20 = 239,587.60 : x
  2. Step 2: Convert to fraction form
    519,984.40/779,746.20 = 239,587.60/x
  3. Step 3: Cross multiply
    519,984.40x = 779,746.20 × 239,587.60
  4. Step 4: Simplify right side
    519,984.40x = 186,817,520,667.12
  5. Step 5: Solve for x
    x = 186,817,520,667.12/519,984.40
  6. Step 6: Final answer
    x = 359,275.24

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Double scale
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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.