Home / 637,563.84-879,840.64-382,919.36

Finding the Fourth Proportional to 637,563.84, 879,840.64 and 382,919.36

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Solution

The fourth proportional to 637,563.84, 879,840.64 and 382,919.36 is: 528,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,563.84 : 879,840.64 = 382,919.36 : x
  2. Step 2: Convert to fraction form
    637,563.84/879,840.64 = 382,919.36/x
  3. Step 3: Cross multiply
    637,563.84x = 879,840.64 × 382,919.36
  4. Step 4: Simplify right side
    637,563.84x = 336,908,014,770.79
  5. Step 5: Solve for x
    x = 336,908,014,770.79/637,563.84
  6. Step 6: Final answer
    x = 528,430.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.