Home / 528,766.10-729,698.13-302,411.60

Finding the Fourth Proportional to 528,766.10, 729,698.13 and 302,411.60

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Solution

The fourth proportional to 528,766.10, 729,698.13 and 302,411.60 is: 417,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,766.10 : 729,698.13 = 302,411.60 : x
  2. Step 2: Convert to fraction form
    528,766.10/729,698.13 = 302,411.60/x
  3. Step 3: Cross multiply
    528,766.10x = 729,698.13 × 302,411.60
  4. Step 4: Simplify right side
    528,766.10x = 220,669,180,575.73
  5. Step 5: Solve for x
    x = 220,669,180,575.73/528,766.10
  6. Step 6: Final answer
    x = 417,328.53

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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.