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Finding the Fourth Proportional to 692,323.61, 955,454.54 and 386,459.51

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Solution

The fourth proportional to 692,323.61, 955,454.54 and 386,459.51 is: 533,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,323.61 : 955,454.54 = 386,459.51 : x
  2. Step 2: Convert to fraction form
    692,323.61/955,454.54 = 386,459.51/x
  3. Step 3: Cross multiply
    692,323.61x = 955,454.54 × 386,459.51
  4. Step 4: Simplify right side
    692,323.61x = 369,244,486,646.11
  5. Step 5: Solve for x
    x = 369,244,486,646.11/692,323.61
  6. Step 6: Final answer
    x = 533,340.89

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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.