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Finding the Fourth Proportional to 679,038.13, 937,072.42 and 373,134.23

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Solution

The fourth proportional to 679,038.13, 937,072.42 and 373,134.23 is: 514,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,038.13 : 937,072.42 = 373,134.23 : x
  2. Step 2: Convert to fraction form
    679,038.13/937,072.42 = 373,134.23/x
  3. Step 3: Cross multiply
    679,038.13x = 937,072.42 × 373,134.23
  4. Step 4: Simplify right side
    679,038.13x = 349,653,790,272.74
  5. Step 5: Solve for x
    x = 349,653,790,272.74/679,038.13
  6. Step 6: Final answer
    x = 514,925.12

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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.