Home / 807,557.10-1,211,335.65-618,600.30

Finding the Fourth Proportional to 807,557.10, 1,211,335.65 and 618,600.30

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Solution

The fourth proportional to 807,557.10, 1,211,335.65 and 618,600.30 is: 927,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,557.10 : 1,211,335.65 = 618,600.30 : x
  2. Step 2: Convert to fraction form
    807,557.10/1,211,335.65 = 618,600.30/x
  3. Step 3: Cross multiply
    807,557.10x = 1,211,335.65 × 618,600.30
  4. Step 4: Simplify right side
    807,557.10x = 749,332,596,490.70
  5. Step 5: Solve for x
    x = 749,332,596,490.70/807,557.10
  6. Step 6: Final answer
    x = 927,900.45

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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.