Home / 921,665.64-1,271,925.54-539,656.68

Finding the Fourth Proportional to 921,665.64, 1,271,925.54 and 539,656.68

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Solution

The fourth proportional to 921,665.64, 1,271,925.54 and 539,656.68 is: 744,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,665.64 : 1,271,925.54 = 539,656.68 : x
  2. Step 2: Convert to fraction form
    921,665.64/1,271,925.54 = 539,656.68/x
  3. Step 3: Cross multiply
    921,665.64x = 1,271,925.54 × 539,656.68
  4. Step 4: Simplify right side
    921,665.64x = 686,403,114,123.61
  5. Step 5: Solve for x
    x = 686,403,114,123.61/921,665.64
  6. Step 6: Final answer
    x = 744,742.00

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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.