Home / 656,187.20-921,150.40-656,187.20

Finding the Fourth Proportional to 656,187.20, 921,150.40 and 656,187.20

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Solution

The fourth proportional to 656,187.20, 921,150.40 and 656,187.20 is: 921,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,187.20 : 921,150.40 = 656,187.20 : x
  2. Step 2: Convert to fraction form
    656,187.20/921,150.40 = 656,187.20/x
  3. Step 3: Cross multiply
    656,187.20x = 921,150.40 × 656,187.20
  4. Step 4: Simplify right side
    656,187.20x = 604,447,101,754.88
  5. Step 5: Solve for x
    x = 604,447,101,754.88/656,187.20
  6. Step 6: Final answer
    x = 921,150.40

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Half scale
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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.