Home / 910,364.80-1,365,547.20-436,806.40

Finding the Fourth Proportional to 910,364.80, 1,365,547.20 and 436,806.40

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Solution

The fourth proportional to 910,364.80, 1,365,547.20 and 436,806.40 is: 655,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,364.80 : 1,365,547.20 = 436,806.40 : x
  2. Step 2: Convert to fraction form
    910,364.80/1,365,547.20 = 436,806.40/x
  3. Step 3: Cross multiply
    910,364.80x = 1,365,547.20 × 436,806.40
  4. Step 4: Simplify right side
    910,364.80x = 596,479,756,462.08
  5. Step 5: Solve for x
    x = 596,479,756,462.08/910,364.80
  6. Step 6: Final answer
    x = 655,209.60

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Double scale
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Similar ratio
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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.