Home / 711,209.64-1,065,690.89-577,436.32

Finding the Fourth Proportional to 711,209.64, 1,065,690.89 and 577,436.32

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Solution

The fourth proportional to 711,209.64, 1,065,690.89 and 577,436.32 is: 865,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,209.64 : 1,065,690.89 = 577,436.32 : x
  2. Step 2: Convert to fraction form
    711,209.64/1,065,690.89 = 577,436.32/x
  3. Step 3: Cross multiply
    711,209.64x = 1,065,690.89 × 577,436.32
  4. Step 4: Simplify right side
    711,209.64x = 615,368,625,779.13
  5. Step 5: Solve for x
    x = 615,368,625,779.13/711,209.64
  6. Step 6: Final answer
    x = 865,242.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.