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Finding the Fourth Proportional to 636,413.95, 954,885.29 and 257,602.47

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Solution

The fourth proportional to 636,413.95, 954,885.29 and 257,602.47 is: 386,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,413.95 : 954,885.29 = 257,602.47 : x
  2. Step 2: Convert to fraction form
    636,413.95/954,885.29 = 257,602.47/x
  3. Step 3: Cross multiply
    636,413.95x = 954,885.29 × 257,602.47
  4. Step 4: Simplify right side
    636,413.95x = 245,980,803,208.23
  5. Step 5: Solve for x
    x = 245,980,803,208.23/636,413.95
  6. Step 6: Final answer
    x = 386,510.70

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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.