Home / 648,923.40-973,385.10-491,459.40

Finding the Fourth Proportional to 648,923.40, 973,385.10 and 491,459.40

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Solution

The fourth proportional to 648,923.40, 973,385.10 and 491,459.40 is: 737,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,923.40 : 973,385.10 = 491,459.40 : x
  2. Step 2: Convert to fraction form
    648,923.40/973,385.10 = 491,459.40/x
  3. Step 3: Cross multiply
    648,923.40x = 973,385.10 × 491,459.40
  4. Step 4: Simplify right side
    648,923.40x = 478,379,257,214.94
  5. Step 5: Solve for x
    x = 478,379,257,214.94/648,923.40
  6. Step 6: Final answer
    x = 737,189.10

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Half scale
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Double scale
Find fourth proportional to 648,924.40, 973,386.60 and 491,460.40
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.