Home / 872,538.60-1,308,807.90-577,050.60

Finding the Fourth Proportional to 872,538.60, 1,308,807.90 and 577,050.60

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Solution

The fourth proportional to 872,538.60, 1,308,807.90 and 577,050.60 is: 865,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,538.60 : 1,308,807.90 = 577,050.60 : x
  2. Step 2: Convert to fraction form
    872,538.60/1,308,807.90 = 577,050.60/x
  3. Step 3: Cross multiply
    872,538.60x = 1,308,807.90 × 577,050.60
  4. Step 4: Simplify right side
    872,538.60x = 755,248,383,979.74
  5. Step 5: Solve for x
    x = 755,248,383,979.74/872,538.60
  6. Step 6: Final answer
    x = 865,575.90

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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.