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Finding the Fourth Proportional to 944,709.60, 1,303,690.80 and 514,989.60

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Solution

The fourth proportional to 944,709.60, 1,303,690.80 and 514,989.60 is: 710,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,709.60 : 1,303,690.80 = 514,989.60 : x
  2. Step 2: Convert to fraction form
    944,709.60/1,303,690.80 = 514,989.60/x
  3. Step 3: Cross multiply
    944,709.60x = 1,303,690.80 × 514,989.60
  4. Step 4: Simplify right side
    944,709.60x = 671,387,203,615.68
  5. Step 5: Solve for x
    x = 671,387,203,615.68/944,709.60
  6. Step 6: Final answer
    x = 710,681.04

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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.