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Finding the Fourth Proportional to 634,710.60, 875,670.78 and 417,036.52

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Solution

The fourth proportional to 634,710.60, 875,670.78 and 417,036.52 is: 575,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,710.60 : 875,670.78 = 417,036.52 : x
  2. Step 2: Convert to fraction form
    634,710.60/875,670.78 = 417,036.52/x
  3. Step 3: Cross multiply
    634,710.60x = 875,670.78 × 417,036.52
  4. Step 4: Simplify right side
    634,710.60x = 365,186,694,756.89
  5. Step 5: Solve for x
    x = 365,186,694,756.89/634,710.60
  6. Step 6: Final answer
    x = 575,359.38

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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.