Home / 630,396.16-869,827.52-375,771.04

Finding the Fourth Proportional to 630,396.16, 869,827.52 and 375,771.04

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Solution

The fourth proportional to 630,396.16, 869,827.52 and 375,771.04 is: 518,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,396.16 : 869,827.52 = 375,771.04 : x
  2. Step 2: Convert to fraction form
    630,396.16/869,827.52 = 375,771.04/x
  3. Step 3: Cross multiply
    630,396.16x = 869,827.52 × 375,771.04
  4. Step 4: Simplify right side
    630,396.16x = 326,855,991,811.02
  5. Step 5: Solve for x
    x = 326,855,991,811.02/630,396.16
  6. Step 6: Final answer
    x = 518,492.99

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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.