Home / 881,916.75-1,217,009.88-519,355.89

Finding the Fourth Proportional to 881,916.75, 1,217,009.88 and 519,355.89

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Solution

The fourth proportional to 881,916.75, 1,217,009.88 and 519,355.89 is: 716,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,916.75 : 1,217,009.88 = 519,355.89 : x
  2. Step 2: Convert to fraction form
    881,916.75/1,217,009.88 = 519,355.89/x
  3. Step 3: Cross multiply
    881,916.75x = 1,217,009.88 × 519,355.89
  4. Step 4: Simplify right side
    881,916.75x = 632,061,249,366.19
  5. Step 5: Solve for x
    x = 632,061,249,366.19/881,916.75
  6. Step 6: Final answer
    x = 716,690.38

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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.