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Finding the Fourth Proportional to 860,654.70, 1,187,703.54 and 473,475.51

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Solution

The fourth proportional to 860,654.70, 1,187,703.54 and 473,475.51 is: 653,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,654.70 : 1,187,703.54 = 473,475.51 : x
  2. Step 2: Convert to fraction form
    860,654.70/1,187,703.54 = 473,475.51/x
  3. Step 3: Cross multiply
    860,654.70x = 1,187,703.54 × 473,475.51
  4. Step 4: Simplify right side
    860,654.70x = 562,348,539,330.31
  5. Step 5: Solve for x
    x = 562,348,539,330.31/860,654.70
  6. Step 6: Final answer
    x = 653,396.23

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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.