Home / 783,410.76-1,081,437.54-529,106.40

Finding the Fourth Proportional to 783,410.76, 1,081,437.54 and 529,106.40

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Solution

The fourth proportional to 783,410.76, 1,081,437.54 and 529,106.40 is: 730,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,410.76 : 1,081,437.54 = 529,106.40 : x
  2. Step 2: Convert to fraction form
    783,410.76/1,081,437.54 = 529,106.40/x
  3. Step 3: Cross multiply
    783,410.76x = 1,081,437.54 × 529,106.40
  4. Step 4: Simplify right side
    783,410.76x = 572,195,523,614.26
  5. Step 5: Solve for x
    x = 572,195,523,614.26/783,410.76
  6. Step 6: Final answer
    x = 730,390.18

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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.