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Finding the Fourth Proportional to 468,417.29, 646,415.33 and 253,557.29

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Solution

The fourth proportional to 468,417.29, 646,415.33 and 253,557.29 is: 349,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,417.29 : 646,415.33 = 253,557.29 : x
  2. Step 2: Convert to fraction form
    468,417.29/646,415.33 = 253,557.29/x
  3. Step 3: Cross multiply
    468,417.29x = 646,415.33 × 253,557.29
  4. Step 4: Simplify right side
    468,417.29x = 163,903,319,637.51
  5. Step 5: Solve for x
    x = 163,903,319,637.51/468,417.29
  6. Step 6: Final answer
    x = 349,908.78

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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.