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Finding the Fourth Proportional to 885,511, 1,328,266.50 and 294,535

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Solution

The fourth proportional to 885,511, 1,328,266.50 and 294,535 is: 441,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,511 : 1,328,266.50 = 294,535 : x
  2. Step 2: Convert to fraction form
    885,511/1,328,266.50 = 294,535/x
  3. Step 3: Cross multiply
    885,511x = 1,328,266.50 × 294,535
  4. Step 4: Simplify right side
    885,511x = 391,220,973,577.50
  5. Step 5: Solve for x
    x = 391,220,973,577.50/885,511
  6. Step 6: Final answer
    x = 441,802.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.