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Finding the Fourth Proportional to 922,177.64, 1,272,602.63 and 514,279.92

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Solution

The fourth proportional to 922,177.64, 1,272,602.63 and 514,279.92 is: 709,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,177.64 : 1,272,602.63 = 514,279.92 : x
  2. Step 2: Convert to fraction form
    922,177.64/1,272,602.63 = 514,279.92/x
  3. Step 3: Cross multiply
    922,177.64x = 1,272,602.63 × 514,279.92
  4. Step 4: Simplify right side
    922,177.64x = 654,473,980,033.89
  5. Step 5: Solve for x
    x = 654,473,980,033.89/922,177.64
  6. Step 6: Final answer
    x = 709,704.89

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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.