Home / 650,848.40-977,147.40-415,235.60

Finding the Fourth Proportional to 650,848.40, 977,147.40 and 415,235.60

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Solution

The fourth proportional to 650,848.40, 977,147.40 and 415,235.60 is: 623,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,848.40 : 977,147.40 = 415,235.60 : x
  2. Step 2: Convert to fraction form
    650,848.40/977,147.40 = 415,235.60/x
  3. Step 3: Cross multiply
    650,848.40x = 977,147.40 × 415,235.60
  4. Step 4: Simplify right side
    650,848.40x = 405,746,386,927.44
  5. Step 5: Solve for x
    x = 405,746,386,927.44/650,848.40
  6. Step 6: Final answer
    x = 623,411.51

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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.