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Finding the Fourth Proportional to 895,254.62, 1,235,413.54 and 487,347.97

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Solution

The fourth proportional to 895,254.62, 1,235,413.54 and 487,347.97 is: 672,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,254.62 : 1,235,413.54 = 487,347.97 : x
  2. Step 2: Convert to fraction form
    895,254.62/1,235,413.54 = 487,347.97/x
  3. Step 3: Cross multiply
    895,254.62x = 1,235,413.54 × 487,347.97
  4. Step 4: Simplify right side
    895,254.62x = 602,076,278,392.77
  5. Step 5: Solve for x
    x = 602,076,278,392.77/895,254.62
  6. Step 6: Final answer
    x = 672,519.60

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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.