Home / 858,883.50-1,185,368.58-519,354.18

Finding the Fourth Proportional to 858,883.50, 1,185,368.58 and 519,354.18

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Solution

The fourth proportional to 858,883.50, 1,185,368.58 and 519,354.18 is: 716,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,883.50 : 1,185,368.58 = 519,354.18 : x
  2. Step 2: Convert to fraction form
    858,883.50/1,185,368.58 = 519,354.18/x
  3. Step 3: Cross multiply
    858,883.50x = 1,185,368.58 × 519,354.18
  4. Step 4: Simplify right side
    858,883.50x = 615,626,126,863.66
  5. Step 5: Solve for x
    x = 615,626,126,863.66/858,883.50
  6. Step 6: Final answer
    x = 716,774.89

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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.