Home / 915,933.60-1,373,900.40-561,639.60

Finding the Fourth Proportional to 915,933.60, 1,373,900.40 and 561,639.60

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Solution

The fourth proportional to 915,933.60, 1,373,900.40 and 561,639.60 is: 842,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,933.60 : 1,373,900.40 = 561,639.60 : x
  2. Step 2: Convert to fraction form
    915,933.60/1,373,900.40 = 561,639.60/x
  3. Step 3: Cross multiply
    915,933.60x = 1,373,900.40 × 561,639.60
  4. Step 4: Simplify right side
    915,933.60x = 771,636,871,095.84
  5. Step 5: Solve for x
    x = 771,636,871,095.84/915,933.60
  6. Step 6: Final answer
    x = 842,459.40

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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.