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Finding the Fourth Proportional to 571,132.69, 788,160.99 and 316,483.68

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Solution

The fourth proportional to 571,132.69, 788,160.99 and 316,483.68 is: 436,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,132.69 : 788,160.99 = 316,483.68 : x
  2. Step 2: Convert to fraction form
    571,132.69/788,160.99 = 316,483.68/x
  3. Step 3: Cross multiply
    571,132.69x = 788,160.99 × 316,483.68
  4. Step 4: Simplify right side
    571,132.69x = 249,440,090,547.64
  5. Step 5: Solve for x
    x = 249,440,090,547.64/571,132.69
  6. Step 6: Final answer
    x = 436,746.30

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Double scale
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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.