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Finding the Fourth Proportional to 543,807.10, 750,475.08 and 372,085.23

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Solution

The fourth proportional to 543,807.10, 750,475.08 and 372,085.23 is: 513,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,807.10 : 750,475.08 = 372,085.23 : x
  2. Step 2: Convert to fraction form
    543,807.10/750,475.08 = 372,085.23/x
  3. Step 3: Cross multiply
    543,807.10x = 750,475.08 × 372,085.23
  4. Step 4: Simplify right side
    543,807.10x = 279,240,695,565.35
  5. Step 5: Solve for x
    x = 279,240,695,565.35/543,807.10
  6. Step 6: Final answer
    x = 513,492.18

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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.