Home / 528,400,233.60-792,600,350.40-390,650,726.40

Finding the Fourth Proportional to 528,400,233.60, 792,600,350.40 and 390,650,726.40

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Solution

The fourth proportional to 528,400,233.60, 792,600,350.40 and 390,650,726.40 is: 585,976,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,400,233.60 : 792,600,350.40 = 390,650,726.40 : x
  2. Step 2: Convert to fraction form
    528,400,233.60/792,600,350.40 = 390,650,726.40/x
  3. Step 3: Cross multiply
    528,400,233.60x = 792,600,350.40 × 390,650,726.40
  4. Step 4: Simplify right side
    528,400,233.60x = 309,629,902,628,654,528
  5. Step 5: Solve for x
    x = 309,629,902,628,654,528/528,400,233.60
  6. Step 6: Final answer
    x = 585,976,089.60

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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.