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Finding the Fourth Proportional to 518,562.84, 716,212.59 and 346,180.68

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Solution

The fourth proportional to 518,562.84, 716,212.59 and 346,180.68 is: 478,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,562.84 : 716,212.59 = 346,180.68 : x
  2. Step 2: Convert to fraction form
    518,562.84/716,212.59 = 346,180.68/x
  3. Step 3: Cross multiply
    518,562.84x = 716,212.59 × 346,180.68
  4. Step 4: Simplify right side
    518,562.84x = 247,938,961,430.76
  5. Step 5: Solve for x
    x = 247,938,961,430.76/518,562.84
  6. Step 6: Final answer
    x = 478,127.13

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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.