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Finding the Fourth Proportional to 841,654.10, 1,161,507.81 and 459,698.90

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Solution

The fourth proportional to 841,654.10, 1,161,507.81 and 459,698.90 is: 634,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,654.10 : 1,161,507.81 = 459,698.90 : x
  2. Step 2: Convert to fraction form
    841,654.10/1,161,507.81 = 459,698.90/x
  3. Step 3: Cross multiply
    841,654.10x = 1,161,507.81 × 459,698.90
  4. Step 4: Simplify right side
    841,654.10x = 533,943,862,598.41
  5. Step 5: Solve for x
    x = 533,943,862,598.41/841,654.10
  6. Step 6: Final answer
    x = 634,398.22

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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.