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Finding the Fourth Proportional to 379,547.01, 523,765.74 and 207,457.23

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Solution

The fourth proportional to 379,547.01, 523,765.74 and 207,457.23 is: 286,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,547.01 : 523,765.74 = 207,457.23 : x
  2. Step 2: Convert to fraction form
    379,547.01/523,765.74 = 207,457.23/x
  3. Step 3: Cross multiply
    379,547.01x = 523,765.74 × 207,457.23
  4. Step 4: Simplify right side
    379,547.01x = 108,658,989,589.30
  5. Step 5: Solve for x
    x = 108,658,989,589.30/379,547.01
  6. Step 6: Final answer
    x = 286,285.98

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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.