Home / 784,666.90-1,177,000.35-607,519.90

Finding the Fourth Proportional to 784,666.90, 1,177,000.35 and 607,519.90

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Solution

The fourth proportional to 784,666.90, 1,177,000.35 and 607,519.90 is: 911,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,666.90 : 1,177,000.35 = 607,519.90 : x
  2. Step 2: Convert to fraction form
    784,666.90/1,177,000.35 = 607,519.90/x
  3. Step 3: Cross multiply
    784,666.90x = 1,177,000.35 × 607,519.90
  4. Step 4: Simplify right side
    784,666.90x = 715,051,134,931.97
  5. Step 5: Solve for x
    x = 715,051,134,931.97/784,666.90
  6. Step 6: Final answer
    x = 911,279.85

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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.