Home / 904,981.76-1,249,092.34-518,021.50

Finding the Fourth Proportional to 904,981.76, 1,249,092.34 and 518,021.50

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Solution

The fourth proportional to 904,981.76, 1,249,092.34 and 518,021.50 is: 714,994.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,981.76 : 1,249,092.34 = 518,021.50 : x
  2. Step 2: Convert to fraction form
    904,981.76/1,249,092.34 = 518,021.50/x
  3. Step 3: Cross multiply
    904,981.76x = 1,249,092.34 × 518,021.50
  4. Step 4: Simplify right side
    904,981.76x = 647,056,681,359.85
  5. Step 5: Solve for x
    x = 647,056,681,359.85/904,981.76
  6. Step 6: Final answer
    x = 714,994.17

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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.