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Finding the Fourth Proportional to 570,347.68, 786,997.36 and 315,698.28

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Solution

The fourth proportional to 570,347.68, 786,997.36 and 315,698.28 is: 435,618.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,347.68 : 786,997.36 = 315,698.28 : x
  2. Step 2: Convert to fraction form
    570,347.68/786,997.36 = 315,698.28/x
  3. Step 3: Cross multiply
    570,347.68x = 786,997.36 × 315,698.28
  4. Step 4: Simplify right side
    570,347.68x = 248,453,712,916.54
  5. Step 5: Solve for x
    x = 248,453,712,916.54/570,347.68
  6. Step 6: Final answer
    x = 435,618.00

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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.