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Finding the Fourth Proportional to 572,851.52, 790,407.84 and 346,492.16

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Solution

The fourth proportional to 572,851.52, 790,407.84 and 346,492.16 is: 478,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,851.52 : 790,407.84 = 346,492.16 : x
  2. Step 2: Convert to fraction form
    572,851.52/790,407.84 = 346,492.16/x
  3. Step 3: Cross multiply
    572,851.52x = 790,407.84 × 346,492.16
  4. Step 4: Simplify right side
    572,851.52x = 273,870,119,762.53
  5. Step 5: Solve for x
    x = 273,870,119,762.53/572,851.52
  6. Step 6: Final answer
    x = 478,082.21

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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.