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Finding the Fourth Proportional to 659,870.60, 988,931.10 and 584,637.80

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Solution

The fourth proportional to 659,870.60, 988,931.10 and 584,637.80 is: 876,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,870.60 : 988,931.10 = 584,637.80 : x
  2. Step 2: Convert to fraction form
    659,870.60/988,931.10 = 584,637.80/x
  3. Step 3: Cross multiply
    659,870.60x = 988,931.10 × 584,637.80
  4. Step 4: Simplify right side
    659,870.60x = 578,166,502,655.58
  5. Step 5: Solve for x
    x = 578,166,502,655.58/659,870.60
  6. Step 6: Final answer
    x = 876,181.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.