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Finding the Fourth Proportional to 586,922.80, 878,051.40 and 508,903.60

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Solution

The fourth proportional to 586,922.80, 878,051.40 and 508,903.60 is: 761,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,922.80 : 878,051.40 = 508,903.60 : x
  2. Step 2: Convert to fraction form
    586,922.80/878,051.40 = 508,903.60/x
  3. Step 3: Cross multiply
    586,922.80x = 878,051.40 × 508,903.60
  4. Step 4: Simplify right side
    586,922.80x = 446,843,518,445.04
  5. Step 5: Solve for x
    x = 446,843,518,445.04/586,922.80
  6. Step 6: Final answer
    x = 761,332.70

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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.