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Finding the Fourth Proportional to 704,718, 972,513.42 and 382,428.03

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Solution

The fourth proportional to 704,718, 972,513.42 and 382,428.03 is: 527,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,718 : 972,513.42 = 382,428.03 : x
  2. Step 2: Convert to fraction form
    704,718/972,513.42 = 382,428.03/x
  3. Step 3: Cross multiply
    704,718x = 972,513.42 × 382,428.03
  4. Step 4: Simplify right side
    704,718x = 371,916,391,359.16
  5. Step 5: Solve for x
    x = 371,916,391,359.16/704,718
  6. Step 6: Final answer
    x = 527,752.08

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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.