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Finding the Fourth Proportional to 860,606.77, 1,187,630.77 and 473,413.86

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Solution

The fourth proportional to 860,606.77, 1,187,630.77 and 473,413.86 is: 653,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,606.77 : 1,187,630.77 = 473,413.86 : x
  2. Step 2: Convert to fraction form
    860,606.77/1,187,630.77 = 473,413.86/x
  3. Step 3: Cross multiply
    860,606.77x = 1,187,630.77 × 473,413.86
  4. Step 4: Simplify right side
    860,606.77x = 562,240,867,080.47
  5. Step 5: Solve for x
    x = 562,240,867,080.47/860,606.77
  6. Step 6: Final answer
    x = 653,307.51

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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.