Home / 909,340.78-1,254,996.84-546,946.78

Finding the Fourth Proportional to 909,340.78, 1,254,996.84 and 546,946.78

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Solution

The fourth proportional to 909,340.78, 1,254,996.84 and 546,946.78 is: 754,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,340.78 : 1,254,996.84 = 546,946.78 : x
  2. Step 2: Convert to fraction form
    909,340.78/1,254,996.84 = 546,946.78/x
  3. Step 3: Cross multiply
    909,340.78x = 1,254,996.84 × 546,946.78
  4. Step 4: Simplify right side
    909,340.78x = 686,416,480,548.18
  5. Step 5: Solve for x
    x = 686,416,480,548.18/909,340.78
  6. Step 6: Final answer
    x = 754,850.65

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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.