Home / 781,110.34-1,077,881.43-436,886.62

Finding the Fourth Proportional to 781,110.34, 1,077,881.43 and 436,886.62

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Solution

The fourth proportional to 781,110.34, 1,077,881.43 and 436,886.62 is: 602,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,110.34 : 1,077,881.43 = 436,886.62 : x
  2. Step 2: Convert to fraction form
    781,110.34/1,077,881.43 = 436,886.62/x
  3. Step 3: Cross multiply
    781,110.34x = 1,077,881.43 × 436,886.62
  4. Step 4: Simplify right side
    781,110.34x = 470,911,974,713.47
  5. Step 5: Solve for x
    x = 470,911,974,713.47/781,110.34
  6. Step 6: Final answer
    x = 602,875.10

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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.