Home / 519,029.60-778,544.40-507,365.60

Finding the Fourth Proportional to 519,029.60, 778,544.40 and 507,365.60

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Solution

The fourth proportional to 519,029.60, 778,544.40 and 507,365.60 is: 761,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,029.60 : 778,544.40 = 507,365.60 : x
  2. Step 2: Convert to fraction form
    519,029.60/778,544.40 = 507,365.60/x
  3. Step 3: Cross multiply
    519,029.60x = 778,544.40 × 507,365.60
  4. Step 4: Simplify right side
    519,029.60x = 395,006,646,632.64
  5. Step 5: Solve for x
    x = 395,006,646,632.64/519,029.60
  6. Step 6: Final answer
    x = 761,048.40

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Double scale
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Similar ratio
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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.