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Finding the Fourth Proportional to 841,602.80, 1,161,413.16 and 479,026.65

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Solution

The fourth proportional to 841,602.80, 1,161,413.16 and 479,026.65 is: 661,057.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,602.80 : 1,161,413.16 = 479,026.65 : x
  2. Step 2: Convert to fraction form
    841,602.80/1,161,413.16 = 479,026.65/x
  3. Step 3: Cross multiply
    841,602.80x = 1,161,413.16 × 479,026.65
  4. Step 4: Simplify right side
    841,602.80x = 556,347,855,300.71
  5. Step 5: Solve for x
    x = 556,347,855,300.71/841,602.80
  6. Step 6: Final answer
    x = 661,057.51

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Double scale
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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.